Home / 721,506,096.30-1,082,259,144.45-618,193,965.90

Finding the Fourth Proportional to 721,506,096.30, 1,082,259,144.45 and 618,193,965.90

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Solution

The fourth proportional to 721,506,096.30, 1,082,259,144.45 and 618,193,965.90 is: 927,290,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,506,096.30 : 1,082,259,144.45 = 618,193,965.90 : x
  2. Step 2: Convert to fraction form
    721,506,096.30/1,082,259,144.45 = 618,193,965.90/x
  3. Step 3: Cross multiply
    721,506,096.30x = 1,082,259,144.45 × 618,193,965.90
  4. Step 4: Simplify right side
    721,506,096.30x = 669,046,072,639,086,464
  5. Step 5: Solve for x
    x = 669,046,072,639,086,464/721,506,096.30
  6. Step 6: Final answer
    x = 927,290,948.85

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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.