Home / 22,129,845.20-30,539,186.36-12,962,487.95

Finding the Fourth Proportional to 22,129,845.20, 30,539,186.36 and 12,962,487.95

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Solution

The fourth proportional to 22,129,845.20, 30,539,186.36 and 12,962,487.95 is: 17,888,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129,845.20 : 30,539,186.36 = 12,962,487.95 : x
  2. Step 2: Convert to fraction form
    22,129,845.20/30,539,186.36 = 12,962,487.95/x
  3. Step 3: Cross multiply
    22,129,845.20x = 30,539,186.36 × 12,962,487.95
  4. Step 4: Simplify right side
    22,129,845.20x = 395,863,834,976,796
  5. Step 5: Solve for x
    x = 395,863,834,976,796/22,129,845.20
  6. Step 6: Final answer
    x = 17,888,233.36

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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.