Home / 87,436,116.56-130,587,290.80-79,222,347.98

Finding the Fourth Proportional to 87,436,116.56, 130,587,290.80 and 79,222,347.98

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Solution

The fourth proportional to 87,436,116.56, 130,587,290.80 and 79,222,347.98 is: 118,319,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436,116.56 : 130,587,290.80 = 79,222,347.98 : x
  2. Step 2: Convert to fraction form
    87,436,116.56/130,587,290.80 = 79,222,347.98/x
  3. Step 3: Cross multiply
    87,436,116.56x = 130,587,290.80 × 79,222,347.98
  4. Step 4: Simplify right side
    87,436,116.56x = 10,345,431,793,523,052
  5. Step 5: Solve for x
    x = 10,345,431,793,523,052/87,436,116.56
  6. Step 6: Final answer
    x = 118,319,891.15

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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.