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Finding the Fourth Proportional to 687,501,377.92, 946,944,600.16 and 528,427,302

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Solution

The fourth proportional to 687,501,377.92, 946,944,600.16 and 528,427,302 is: 727,840,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,501,377.92 : 946,944,600.16 = 528,427,302 : x
  2. Step 2: Convert to fraction form
    687,501,377.92/946,944,600.16 = 528,427,302/x
  3. Step 3: Cross multiply
    687,501,377.92x = 946,944,600.16 × 528,427,302
  4. Step 4: Simplify right side
    687,501,377.92x = 500,391,380,206,017,536
  5. Step 5: Solve for x
    x = 500,391,380,206,017,536/687,501,377.92
  6. Step 6: Final answer
    x = 727,840,548.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.