Home / 253,003,390.92-379,513,486.98-87,005,267.28

Finding the Fourth Proportional to 253,003,390.92, 379,513,486.98 and 87,005,267.28

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Solution

The fourth proportional to 253,003,390.92, 379,513,486.98 and 87,005,267.28 is: 130,510,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,003,390.92 : 379,513,486.98 = 87,005,267.28 : x
  2. Step 2: Convert to fraction form
    253,003,390.92/379,513,486.98 = 87,005,267.28/x
  3. Step 3: Cross multiply
    253,003,390.92x = 379,513,486.98 × 87,005,267.28
  4. Step 4: Simplify right side
    253,003,390.92x = 33,019,672,371,059,704
  5. Step 5: Solve for x
    x = 33,019,672,371,059,704/253,003,390.92
  6. Step 6: Final answer
    x = 130,510,789.80

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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.