Home / 20,577,881.70-30,866,822.55-12,925,131.30

Finding the Fourth Proportional to 20,577,881.70, 30,866,822.55 and 12,925,131.30

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Solution

The fourth proportional to 20,577,881.70, 30,866,822.55 and 12,925,131.30 is: 19,387,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,881.70 : 30,866,822.55 = 12,925,131.30 : x
  2. Step 2: Convert to fraction form
    20,577,881.70/30,866,822.55 = 12,925,131.30/x
  3. Step 3: Cross multiply
    20,577,881.70x = 30,866,822.55 × 12,925,131.30
  4. Step 4: Simplify right side
    20,577,881.70x = 398,957,734,272,550.88
  5. Step 5: Solve for x
    x = 398,957,734,272,550.88/20,577,881.70
  6. Step 6: Final answer
    x = 19,387,696.95

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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.