Home / 746,520,139.40-1,119,780,209.10-472,406,808.20

Finding the Fourth Proportional to 746,520,139.40, 1,119,780,209.10 and 472,406,808.20

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Solution

The fourth proportional to 746,520,139.40, 1,119,780,209.10 and 472,406,808.20 is: 708,610,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,520,139.40 : 1,119,780,209.10 = 472,406,808.20 : x
  2. Step 2: Convert to fraction form
    746,520,139.40/1,119,780,209.10 = 472,406,808.20/x
  3. Step 3: Cross multiply
    746,520,139.40x = 1,119,780,209.10 × 472,406,808.20
  4. Step 4: Simplify right side
    746,520,139.40x = 528,991,794,466,459,520
  5. Step 5: Solve for x
    x = 528,991,794,466,459,520/746,520,139.40
  6. Step 6: Final answer
    x = 708,610,212.30

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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.