Home / 129,201,691.20-193,596,914.40-90,413,583.84

Finding the Fourth Proportional to 129,201,691.20, 193,596,914.40 and 90,413,583.84

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Solution

The fourth proportional to 129,201,691.20, 193,596,914.40 and 90,413,583.84 is: 135,476,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,201,691.20 : 193,596,914.40 = 90,413,583.84 : x
  2. Step 2: Convert to fraction form
    129,201,691.20/193,596,914.40 = 90,413,583.84/x
  3. Step 3: Cross multiply
    129,201,691.20x = 193,596,914.40 × 90,413,583.84
  4. Step 4: Simplify right side
    129,201,691.20x = 17,503,790,851,269,704
  5. Step 5: Solve for x
    x = 17,503,790,851,269,704/129,201,691.20
  6. Step 6: Final answer
    x = 135,476,484.00

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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.