Home / 127,832,432.80-191,636,674.80-76,734,781.60

Finding the Fourth Proportional to 127,832,432.80, 191,636,674.80 and 76,734,781.60

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Solution

The fourth proportional to 127,832,432.80, 191,636,674.80 and 76,734,781.60 is: 115,034,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,832,432.80 : 191,636,674.80 = 76,734,781.60 : x
  2. Step 2: Convert to fraction form
    127,832,432.80/191,636,674.80 = 76,734,781.60/x
  3. Step 3: Cross multiply
    127,832,432.80x = 191,636,674.80 × 76,734,781.60
  4. Step 4: Simplify right side
    127,832,432.80x = 14,705,198,387,328,224
  5. Step 5: Solve for x
    x = 14,705,198,387,328,224/127,832,432.80
  6. Step 6: Final answer
    x = 115,034,956.82

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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.