Home / 840,501,397.33-1,261,517,158.82-447,358,285.21

Finding the Fourth Proportional to 840,501,397.33, 1,261,517,158.82 and 447,358,285.21

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Solution

The fourth proportional to 840,501,397.33, 1,261,517,158.82 and 447,358,285.21 is: 671,444,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,501,397.33 : 1,261,517,158.82 = 447,358,285.21 : x
  2. Step 2: Convert to fraction form
    840,501,397.33/1,261,517,158.82 = 447,358,285.21/x
  3. Step 3: Cross multiply
    840,501,397.33x = 1,261,517,158.82 × 447,358,285.21
  4. Step 4: Simplify right side
    840,501,397.33x = 564,350,152,926,398,784
  5. Step 5: Solve for x
    x = 564,350,152,926,398,784/840,501,397.33
  6. Step 6: Final answer
    x = 671,444,633.79

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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.