Home / 1,112,859,025.60-1,669,288,538.40-385,921,220.80

Finding the Fourth Proportional to 1,112,859,025.60, 1,669,288,538.40 and 385,921,220.80

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Solution

The fourth proportional to 1,112,859,025.60, 1,669,288,538.40 and 385,921,220.80 is: 578,881,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,859,025.60 : 1,669,288,538.40 = 385,921,220.80 : x
  2. Step 2: Convert to fraction form
    1,112,859,025.60/1,669,288,538.40 = 385,921,220.80/x
  3. Step 3: Cross multiply
    1,112,859,025.60x = 1,669,288,538.40 × 385,921,220.80
  4. Step 4: Simplify right side
    1,112,859,025.60x = 644,213,870,606,775,680
  5. Step 5: Solve for x
    x = 644,213,870,606,775,680/1,112,859,025.60
  6. Step 6: Final answer
    x = 578,881,831.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.