Home / 459,327,335,979.60-688,991,003,969.40-123,941,723,324.40

Finding the Fourth Proportional to 459,327,335,979.60, 688,991,003,969.40 and 123,941,723,324.40

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Solution

The fourth proportional to 459,327,335,979.60, 688,991,003,969.40 and 123,941,723,324.40 is: 185,912,584,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,327,335,979.60 : 688,991,003,969.40 = 123,941,723,324.40 : x
  2. Step 2: Convert to fraction form
    459,327,335,979.60/688,991,003,969.40 = 123,941,723,324.40/x
  3. Step 3: Cross multiply
    459,327,335,979.60x = 688,991,003,969.40 × 123,941,723,324.40
  4. Step 4: Simplify right side
    459,327,335,979.60x = 85,394,732,386,975,955,812,352
  5. Step 5: Solve for x
    x = 85,394,732,386,975,955,812,352/459,327,335,979.60
  6. Step 6: Final answer
    x = 185,912,584,986.60

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Double scale
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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.