Home / 133,034,998.70-199,552,498.05-78,615,440.30

Finding the Fourth Proportional to 133,034,998.70, 199,552,498.05 and 78,615,440.30

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Solution

The fourth proportional to 133,034,998.70, 199,552,498.05 and 78,615,440.30 is: 117,923,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,034,998.70 : 199,552,498.05 = 78,615,440.30 : x
  2. Step 2: Convert to fraction form
    133,034,998.70/199,552,498.05 = 78,615,440.30/x
  3. Step 3: Cross multiply
    133,034,998.70x = 199,552,498.05 × 78,615,440.30
  4. Step 4: Simplify right side
    133,034,998.70x = 15,687,907,497,165,642
  5. Step 5: Solve for x
    x = 15,687,907,497,165,642/133,034,998.70
  6. Step 6: Final answer
    x = 117,923,160.45

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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.