Home / 87,840,854,261.89-121,222,935,962.83-49,777,795,641.13

Finding the Fourth Proportional to 87,840,854,261.89, 121,222,935,962.83 and 49,777,795,641.13

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Solution

The fourth proportional to 87,840,854,261.89, 121,222,935,962.83 and 49,777,795,641.13 is: 68,694,807,035.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840,854,261.89 : 121,222,935,962.83 = 49,777,795,641.13 : x
  2. Step 2: Convert to fraction form
    87,840,854,261.89/121,222,935,962.83 = 49,777,795,641.13/x
  3. Step 3: Cross multiply
    87,840,854,261.89x = 121,222,935,962.83 × 49,777,795,641.13
  4. Step 4: Simplify right side
    87,840,854,261.89x = 6,034,210,533,375,297,454,080
  5. Step 5: Solve for x
    x = 6,034,210,533,375,297,454,080/87,840,854,261.89
  6. Step 6: Final answer
    x = 68,694,807,035.74

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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.