Home / 81,129,337.29-111,958,875.30-43,959,607.74

Finding the Fourth Proportional to 81,129,337.29, 111,958,875.30 and 43,959,607.74

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Solution

The fourth proportional to 81,129,337.29, 111,958,875.30 and 43,959,607.74 is: 60,664,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,337.29 : 111,958,875.30 = 43,959,607.74 : x
  2. Step 2: Convert to fraction form
    81,129,337.29/111,958,875.30 = 43,959,607.74/x
  3. Step 3: Cross multiply
    81,129,337.29x = 111,958,875.30 × 43,959,607.74
  4. Step 4: Simplify right side
    81,129,337.29x = 4,921,668,241,199,575
  5. Step 5: Solve for x
    x = 4,921,668,241,199,575/81,129,337.29
  6. Step 6: Final answer
    x = 60,664,469.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.