Home / 87,081,411.03-120,172,311.90-47,923,187.64

Finding the Fourth Proportional to 87,081,411.03, 120,172,311.90 and 47,923,187.64

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Solution

The fourth proportional to 87,081,411.03, 120,172,311.90 and 47,923,187.64 is: 66,133,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,081,411.03 : 120,172,311.90 = 47,923,187.64 : x
  2. Step 2: Convert to fraction form
    87,081,411.03/120,172,311.90 = 47,923,187.64/x
  3. Step 3: Cross multiply
    87,081,411.03x = 120,172,311.90 × 47,923,187.64
  4. Step 4: Simplify right side
    87,081,411.03x = 5,759,040,252,316,305
  5. Step 5: Solve for x
    x = 5,759,040,252,316,305/87,081,411.03
  6. Step 6: Final answer
    x = 66,133,979.50

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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.