Home / 99,645,352.80-149,468,029.20-90,557,711.70

Finding the Fourth Proportional to 99,645,352.80, 149,468,029.20 and 90,557,711.70

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Solution

The fourth proportional to 99,645,352.80, 149,468,029.20 and 90,557,711.70 is: 135,836,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,352.80 : 149,468,029.20 = 90,557,711.70 : x
  2. Step 2: Convert to fraction form
    99,645,352.80/149,468,029.20 = 90,557,711.70/x
  3. Step 3: Cross multiply
    99,645,352.80x = 149,468,029.20 × 90,557,711.70
  4. Step 4: Simplify right side
    99,645,352.80x = 13,535,482,696,660,782
  5. Step 5: Solve for x
    x = 13,535,482,696,660,782/99,645,352.80
  6. Step 6: Final answer
    x = 135,836,567.55

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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.