Home / 99,645,628.05-149,468,442.08-90,557,986.95

Finding the Fourth Proportional to 99,645,628.05, 149,468,442.08 and 90,557,986.95

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Solution

The fourth proportional to 99,645,628.05, 149,468,442.08 and 90,557,986.95 is: 135,836,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,628.05 : 149,468,442.08 = 90,557,986.95 : x
  2. Step 2: Convert to fraction form
    99,645,628.05/149,468,442.08 = 90,557,986.95/x
  3. Step 3: Cross multiply
    99,645,628.05x = 149,468,442.08 × 90,557,986.95
  4. Step 4: Simplify right side
    99,645,628.05x = 13,535,561,226,864,680
  5. Step 5: Solve for x
    x = 13,535,561,226,864,680/99,645,628.05
  6. Step 6: Final answer
    x = 135,836,980.43

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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.