Home / 144,581,549.30-217,040,285.55-87,138,682.10

Finding the Fourth Proportional to 144,581,549.30, 217,040,285.55 and 87,138,682.10

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Solution

The fourth proportional to 144,581,549.30, 217,040,285.55 and 87,138,682.10 is: 130,809,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581,549.30 : 217,040,285.55 = 87,138,682.10 : x
  2. Step 2: Convert to fraction form
    144,581,549.30/217,040,285.55 = 87,138,682.10/x
  3. Step 3: Cross multiply
    144,581,549.30x = 217,040,285.55 × 87,138,682.10
  4. Step 4: Simplify right side
    144,581,549.30x = 18,912,604,445,434,672
  5. Step 5: Solve for x
    x = 18,912,604,445,434,672/144,581,549.30
  6. Step 6: Final answer
    x = 130,809,252.89

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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.