Home / 87,081,426-120,172,332.56-47,923,202.64

Finding the Fourth Proportional to 87,081,426, 120,172,332.56 and 47,923,202.64

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Solution

The fourth proportional to 87,081,426, 120,172,332.56 and 47,923,202.64 is: 66,134,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,081,426 : 120,172,332.56 = 47,923,202.64 : x
  2. Step 2: Convert to fraction form
    87,081,426/120,172,332.56 = 47,923,202.64/x
  3. Step 3: Cross multiply
    87,081,426x = 120,172,332.56 × 47,923,202.64
  4. Step 4: Simplify right side
    87,081,426x = 5,759,043,044,994,350
  5. Step 5: Solve for x
    x = 5,759,043,044,994,350/87,081,426
  6. Step 6: Final answer
    x = 66,134,000.21

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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.