Home / 87,078,950.65-120,141,898.15-49,395,904.05

Finding the Fourth Proportional to 87,078,950.65, 120,141,898.15 and 49,395,904.05

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Solution

The fourth proportional to 87,078,950.65, 120,141,898.15 and 49,395,904.05 is: 68,151,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,078,950.65 : 120,141,898.15 = 49,395,904.05 : x
  2. Step 2: Convert to fraction form
    87,078,950.65/120,141,898.15 = 49,395,904.05/x
  3. Step 3: Cross multiply
    87,078,950.65x = 120,141,898.15 × 49,395,904.05
  4. Step 4: Simplify right side
    87,078,950.65x = 5,934,517,673,402,272
  5. Step 5: Solve for x
    x = 5,934,517,673,402,272/87,078,950.65
  6. Step 6: Final answer
    x = 68,151,001.24

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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.