Home / 20,577,118.80-28,397,700.39-11,409,761.55

Finding the Fourth Proportional to 20,577,118.80, 28,397,700.39 and 11,409,761.55

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Solution

The fourth proportional to 20,577,118.80, 28,397,700.39 and 11,409,761.55 is: 15,746,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,118.80 : 28,397,700.39 = 11,409,761.55 : x
  2. Step 2: Convert to fraction form
    20,577,118.80/28,397,700.39 = 11,409,761.55/x
  3. Step 3: Cross multiply
    20,577,118.80x = 28,397,700.39 × 11,409,761.55
  4. Step 4: Simplify right side
    20,577,118.80x = 324,010,990,018,242.06
  5. Step 5: Solve for x
    x = 324,010,990,018,242.06/20,577,118.80
  6. Step 6: Final answer
    x = 15,746,178.71

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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.