Home / 712,932,144.30-1,069,398,216.45-687,104,111.70

Finding the Fourth Proportional to 712,932,144.30, 1,069,398,216.45 and 687,104,111.70

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Solution

The fourth proportional to 712,932,144.30, 1,069,398,216.45 and 687,104,111.70 is: 1,030,656,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,932,144.30 : 1,069,398,216.45 = 687,104,111.70 : x
  2. Step 2: Convert to fraction form
    712,932,144.30/1,069,398,216.45 = 687,104,111.70/x
  3. Step 3: Cross multiply
    712,932,144.30x = 1,069,398,216.45 × 687,104,111.70
  4. Step 4: Simplify right side
    712,932,144.30x = 734,787,911,567,441,664
  5. Step 5: Solve for x
    x = 734,787,911,567,441,664/712,932,144.30
  6. Step 6: Final answer
    x = 1,030,656,167.55

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Double scale
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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.