Home / 90,321,685.74-124,644,799.89-49,068,873.36

Finding the Fourth Proportional to 90,321,685.74, 124,644,799.89 and 49,068,873.36

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Solution

The fourth proportional to 90,321,685.74, 124,644,799.89 and 49,068,873.36 is: 67,715,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321,685.74 : 124,644,799.89 = 49,068,873.36 : x
  2. Step 2: Convert to fraction form
    90,321,685.74/124,644,799.89 = 49,068,873.36/x
  3. Step 3: Cross multiply
    90,321,685.74x = 124,644,799.89 × 49,068,873.36
  4. Step 4: Simplify right side
    90,321,685.74x = 6,116,179,900,784,952
  5. Step 5: Solve for x
    x = 6,116,179,900,784,952/90,321,685.74
  6. Step 6: Final answer
    x = 67,715,519.82

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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.