Home / 87,081,417.03-120,172,320.18-47,923,193.64

Finding the Fourth Proportional to 87,081,417.03, 120,172,320.18 and 47,923,193.64

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Solution

The fourth proportional to 87,081,417.03, 120,172,320.18 and 47,923,193.64 is: 66,133,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,081,417.03 : 120,172,320.18 = 47,923,193.64 : x
  2. Step 2: Convert to fraction form
    87,081,417.03/120,172,320.18 = 47,923,193.64/x
  3. Step 3: Cross multiply
    87,081,417.03x = 120,172,320.18 × 47,923,193.64
  4. Step 4: Simplify right side
    87,081,417.03x = 5,759,041,370,154,220
  5. Step 5: Solve for x
    x = 5,759,041,370,154,220/87,081,417.03
  6. Step 6: Final answer
    x = 66,133,987.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.