Home / 99,844,218.90-149,766,328.35-72,421,863.30

Finding the Fourth Proportional to 99,844,218.90, 149,766,328.35 and 72,421,863.30

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Solution

The fourth proportional to 99,844,218.90, 149,766,328.35 and 72,421,863.30 is: 108,632,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844,218.90 : 149,766,328.35 = 72,421,863.30 : x
  2. Step 2: Convert to fraction form
    99,844,218.90/149,766,328.35 = 72,421,863.30/x
  3. Step 3: Cross multiply
    99,844,218.90x = 149,766,328.35 × 72,421,863.30
  4. Step 4: Simplify right side
    99,844,218.90x = 10,846,356,558,706,614
  5. Step 5: Solve for x
    x = 10,846,356,558,706,614/99,844,218.90
  6. Step 6: Final answer
    x = 108,632,794.95

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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.