Home / 127,817,998.80-191,726,998.20-76,673,691.60

Finding the Fourth Proportional to 127,817,998.80, 191,726,998.20 and 76,673,691.60

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Solution

The fourth proportional to 127,817,998.80, 191,726,998.20 and 76,673,691.60 is: 115,010,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817,998.80 : 191,726,998.20 = 76,673,691.60 : x
  2. Step 2: Convert to fraction form
    127,817,998.80/191,726,998.20 = 76,673,691.60/x
  3. Step 3: Cross multiply
    127,817,998.80x = 191,726,998.20 × 76,673,691.60
  4. Step 4: Simplify right side
    127,817,998.80x = 14,700,416,731,380,554
  5. Step 5: Solve for x
    x = 14,700,416,731,380,554/127,817,998.80
  6. Step 6: Final answer
    x = 115,010,537.40

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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.