Home / 87,436,117.56-130,587,292.29-79,222,348.98

Finding the Fourth Proportional to 87,436,117.56, 130,587,292.29 and 79,222,348.98

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Solution

The fourth proportional to 87,436,117.56, 130,587,292.29 and 79,222,348.98 is: 118,319,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436,117.56 : 130,587,292.29 = 79,222,348.98 : x
  2. Step 2: Convert to fraction form
    87,436,117.56/130,587,292.29 = 79,222,348.98/x
  3. Step 3: Cross multiply
    87,436,117.56x = 130,587,292.29 × 79,222,348.98
  4. Step 4: Simplify right side
    87,436,117.56x = 10,345,432,042,151,644
  5. Step 5: Solve for x
    x = 10,345,432,042,151,644/87,436,117.56
  6. Step 6: Final answer
    x = 118,319,892.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.