Home / 20,705,612.80-31,058,419.20-7,241,036.80

Finding the Fourth Proportional to 20,705,612.80, 31,058,419.20 and 7,241,036.80

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Solution

The fourth proportional to 20,705,612.80, 31,058,419.20 and 7,241,036.80 is: 10,861,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,612.80 : 31,058,419.20 = 7,241,036.80 : x
  2. Step 2: Convert to fraction form
    20,705,612.80/31,058,419.20 = 7,241,036.80/x
  3. Step 3: Cross multiply
    20,705,612.80x = 31,058,419.20 × 7,241,036.80
  4. Step 4: Simplify right side
    20,705,612.80x = 224,895,156,377,026.56
  5. Step 5: Solve for x
    x = 224,895,156,377,026.56/20,705,612.80
  6. Step 6: Final answer
    x = 10,861,555.20

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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.