Home / 99,663,948.40-149,212,487.40-76,800,175.60

Finding the Fourth Proportional to 99,663,948.40, 149,212,487.40 and 76,800,175.60

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Solution

The fourth proportional to 99,663,948.40, 149,212,487.40 and 76,800,175.60 is: 114,981,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663,948.40 : 149,212,487.40 = 76,800,175.60 : x
  2. Step 2: Convert to fraction form
    99,663,948.40/149,212,487.40 = 76,800,175.60/x
  3. Step 3: Cross multiply
    99,663,948.40x = 149,212,487.40 × 76,800,175.60
  4. Step 4: Simplify right side
    99,663,948.40x = 11,459,545,234,032,788
  5. Step 5: Solve for x
    x = 11,459,545,234,032,788/99,663,948.40
  6. Step 6: Final answer
    x = 114,981,850.69

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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.