Home / 1,255,308,683.19-1,731,604,618.56-784,593,085.11

Finding the Fourth Proportional to 1,255,308,683.19, 1,731,604,618.56 and 784,593,085.11

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Solution

The fourth proportional to 1,255,308,683.19, 1,731,604,618.56 and 784,593,085.11 is: 1,082,287,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,308,683.19 : 1,731,604,618.56 = 784,593,085.11 : x
  2. Step 2: Convert to fraction form
    1,255,308,683.19/1,731,604,618.56 = 784,593,085.11/x
  3. Step 3: Cross multiply
    1,255,308,683.19x = 1,731,604,618.56 × 784,593,085.11
  4. Step 4: Simplify right side
    1,255,308,683.19x = 1,358,605,009,866,715,136
  5. Step 5: Solve for x
    x = 1,358,605,009,866,715,136/1,255,308,683.19
  6. Step 6: Final answer
    x = 1,082,287,590.34

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Half scale
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Double scale
Find fourth proportional to 1,255,308,684.19, 1,731,604,619.94 and 784,593,086.11
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.