Home / 144,581,587.30-217,040,342.55-87,138,720.10

Finding the Fourth Proportional to 144,581,587.30, 217,040,342.55 and 87,138,720.10

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Solution

The fourth proportional to 144,581,587.30, 217,040,342.55 and 87,138,720.10 is: 130,809,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581,587.30 : 217,040,342.55 = 87,138,720.10 : x
  2. Step 2: Convert to fraction form
    144,581,587.30/217,040,342.55 = 87,138,720.10/x
  3. Step 3: Cross multiply
    144,581,587.30x = 217,040,342.55 × 87,138,720.10
  4. Step 4: Simplify right side
    144,581,587.30x = 18,912,617,659,872,572
  5. Step 5: Solve for x
    x = 18,912,617,659,872,572/144,581,587.30
  6. Step 6: Final answer
    x = 130,809,309.91

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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.