Home / 712,932,149.80-1,069,398,224.70-687,104,117.20

Finding the Fourth Proportional to 712,932,149.80, 1,069,398,224.70 and 687,104,117.20

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Solution

The fourth proportional to 712,932,149.80, 1,069,398,224.70 and 687,104,117.20 is: 1,030,656,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,932,149.80 : 1,069,398,224.70 = 687,104,117.20 : x
  2. Step 2: Convert to fraction form
    712,932,149.80/1,069,398,224.70 = 687,104,117.20/x
  3. Step 3: Cross multiply
    712,932,149.80x = 1,069,398,224.70 × 687,104,117.20
  4. Step 4: Simplify right side
    712,932,149.80x = 734,787,923,117,740,800
  5. Step 5: Solve for x
    x = 734,787,923,117,740,800/712,932,149.80
  6. Step 6: Final answer
    x = 1,030,656,175.80

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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.