Home / 885,742,863.80-1,328,614,295.70-516,899,190.20

Finding the Fourth Proportional to 885,742,863.80, 1,328,614,295.70 and 516,899,190.20

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Solution

The fourth proportional to 885,742,863.80, 1,328,614,295.70 and 516,899,190.20 is: 775,348,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,742,863.80 : 1,328,614,295.70 = 516,899,190.20 : x
  2. Step 2: Convert to fraction form
    885,742,863.80/1,328,614,295.70 = 516,899,190.20/x
  3. Step 3: Cross multiply
    885,742,863.80x = 1,328,614,295.70 × 516,899,190.20
  4. Step 4: Simplify right side
    885,742,863.80x = 686,759,653,535,473,408
  5. Step 5: Solve for x
    x = 686,759,653,535,473,408/885,742,863.80
  6. Step 6: Final answer
    x = 775,348,785.30

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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.