Home / 124,082,042.70-186,123,064.05-78,165,540.30

Finding the Fourth Proportional to 124,082,042.70, 186,123,064.05 and 78,165,540.30

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Solution

The fourth proportional to 124,082,042.70, 186,123,064.05 and 78,165,540.30 is: 117,248,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,082,042.70 : 186,123,064.05 = 78,165,540.30 : x
  2. Step 2: Convert to fraction form
    124,082,042.70/186,123,064.05 = 78,165,540.30/x
  3. Step 3: Cross multiply
    124,082,042.70x = 186,123,064.05 × 78,165,540.30
  4. Step 4: Simplify right side
    124,082,042.70x = 14,548,409,863,759,756
  5. Step 5: Solve for x
    x = 14,548,409,863,759,756/124,082,042.70
  6. Step 6: Final answer
    x = 117,248,310.45

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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.