Home / 1,119,314,571.40-1,678,971,857.10-536,748,947.20

Finding the Fourth Proportional to 1,119,314,571.40, 1,678,971,857.10 and 536,748,947.20

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Solution

The fourth proportional to 1,119,314,571.40, 1,678,971,857.10 and 536,748,947.20 is: 805,123,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,314,571.40 : 1,678,971,857.10 = 536,748,947.20 : x
  2. Step 2: Convert to fraction form
    1,119,314,571.40/1,678,971,857.10 = 536,748,947.20/x
  3. Step 3: Cross multiply
    1,119,314,571.40x = 1,678,971,857.10 × 536,748,947.20
  4. Step 4: Simplify right side
    1,119,314,571.40x = 901,186,376,676,853,760
  5. Step 5: Solve for x
    x = 901,186,376,676,853,760/1,119,314,571.40
  6. Step 6: Final answer
    x = 805,123,420.80

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Half scale
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Double scale
Find fourth proportional to 1,119,314,572.40, 1,678,971,858.60 and 536,748,948.20
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.