Home / 99,487,029.60-149,342,518.80-76,868,200.80

Finding the Fourth Proportional to 99,487,029.60, 149,342,518.80 and 76,868,200.80

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Solution

The fourth proportional to 99,487,029.60, 149,342,518.80 and 76,868,200.80 is: 115,388,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,487,029.60 : 149,342,518.80 = 76,868,200.80 : x
  2. Step 2: Convert to fraction form
    99,487,029.60/149,342,518.80 = 76,868,200.80/x
  3. Step 3: Cross multiply
    99,487,029.60x = 149,342,518.80 × 76,868,200.80
  4. Step 4: Simplify right side
    99,487,029.60x = 11,479,690,723,096,176
  5. Step 5: Solve for x
    x = 11,479,690,723,096,176/99,487,029.60
  6. Step 6: Final answer
    x = 115,388,817.71

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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.