Home / 87,425,979.50-120,658,431.47-49,758,302.30

Finding the Fourth Proportional to 87,425,979.50, 120,658,431.47 and 49,758,302.30

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Solution

The fourth proportional to 87,425,979.50, 120,658,431.47 and 49,758,302.30 is: 68,672,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,425,979.50 : 120,658,431.47 = 49,758,302.30 : x
  2. Step 2: Convert to fraction form
    87,425,979.50/120,658,431.47 = 49,758,302.30/x
  3. Step 3: Cross multiply
    87,425,979.50x = 120,658,431.47 × 49,758,302.30
  4. Step 4: Simplify right side
    87,425,979.50x = 6,003,758,707,276,010
  5. Step 5: Solve for x
    x = 6,003,758,707,276,010/87,425,979.50
  6. Step 6: Final answer
    x = 68,672,478.61

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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.