Home / 86,107,939.70-129,222,446.04-77,875,254.30

Finding the Fourth Proportional to 86,107,939.70, 129,222,446.04 and 77,875,254.30

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Solution

The fourth proportional to 86,107,939.70, 129,222,446.04 and 77,875,254.30 is: 116,867,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,107,939.70 : 129,222,446.04 = 77,875,254.30 : x
  2. Step 2: Convert to fraction form
    86,107,939.70/129,222,446.04 = 77,875,254.30/x
  3. Step 3: Cross multiply
    86,107,939.70x = 129,222,446.04 × 77,875,254.30
  4. Step 4: Simplify right side
    86,107,939.70x = 10,063,230,846,633,028
  5. Step 5: Solve for x
    x = 10,063,230,846,633,028/86,107,939.70
  6. Step 6: Final answer
    x = 116,867,630.11

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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.