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Finding the Fourth Proportional to 898,156,979.60, 1,347,235,469.40 and 509,829,760.40

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Solution

The fourth proportional to 898,156,979.60, 1,347,235,469.40 and 509,829,760.40 is: 764,744,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,156,979.60 : 1,347,235,469.40 = 509,829,760.40 : x
  2. Step 2: Convert to fraction form
    898,156,979.60/1,347,235,469.40 = 509,829,760.40/x
  3. Step 3: Cross multiply
    898,156,979.60x = 1,347,235,469.40 × 509,829,760.40
  4. Step 4: Simplify right side
    898,156,979.60x = 686,860,736,566,583,552
  5. Step 5: Solve for x
    x = 686,860,736,566,583,552/898,156,979.60
  6. Step 6: Final answer
    x = 764,744,640.60

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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.