Home / 81,587,755.62-122,381,633.43-26,985,670.20

Finding the Fourth Proportional to 81,587,755.62, 122,381,633.43 and 26,985,670.20

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Solution

The fourth proportional to 81,587,755.62, 122,381,633.43 and 26,985,670.20 is: 40,478,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587,755.62 : 122,381,633.43 = 26,985,670.20 : x
  2. Step 2: Convert to fraction form
    81,587,755.62/122,381,633.43 = 26,985,670.20/x
  3. Step 3: Cross multiply
    81,587,755.62x = 122,381,633.43 × 26,985,670.20
  4. Step 4: Simplify right side
    81,587,755.62x = 3,302,550,398,279,275
  5. Step 5: Solve for x
    x = 3,302,550,398,279,275/81,587,755.62
  6. Step 6: Final answer
    x = 40,478,505.30

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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.