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Finding the Fourth Proportional to 639,522,006.30, 959,283,009.45 and 600,779,957.40

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Solution

The fourth proportional to 639,522,006.30, 959,283,009.45 and 600,779,957.40 is: 901,169,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,522,006.30 : 959,283,009.45 = 600,779,957.40 : x
  2. Step 2: Convert to fraction form
    639,522,006.30/959,283,009.45 = 600,779,957.40/x
  3. Step 3: Cross multiply
    639,522,006.30x = 959,283,009.45 × 600,779,957.40
  4. Step 4: Simplify right side
    639,522,006.30x = 576,318,005,551,914,816
  5. Step 5: Solve for x
    x = 576,318,005,551,914,816/639,522,006.30
  6. Step 6: Final answer
    x = 901,169,936.10

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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.