Home / 72,578,794.20-108,718,892.10-49,885,315.80

Finding the Fourth Proportional to 72,578,794.20, 108,718,892.10 and 49,885,315.80

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Solution

The fourth proportional to 72,578,794.20, 108,718,892.10 and 49,885,315.80 is: 74,725,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,794.20 : 108,718,892.10 = 49,885,315.80 : x
  2. Step 2: Convert to fraction form
    72,578,794.20/108,718,892.10 = 49,885,315.80/x
  3. Step 3: Cross multiply
    72,578,794.20x = 108,718,892.10 × 49,885,315.80
  4. Step 4: Simplify right side
    72,578,794.20x = 5,423,476,265,834,625
  5. Step 5: Solve for x
    x = 5,423,476,265,834,625/72,578,794.20
  6. Step 6: Final answer
    x = 74,725,356.43

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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.