Home / 20,561,566.66-28,373,988.53-12,306,177.47

Finding the Fourth Proportional to 20,561,566.66, 28,373,988.53 and 12,306,177.47

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Solution

The fourth proportional to 20,561,566.66, 28,373,988.53 and 12,306,177.47 is: 16,981,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,566.66 : 28,373,988.53 = 12,306,177.47 : x
  2. Step 2: Convert to fraction form
    20,561,566.66/28,373,988.53 = 12,306,177.47/x
  3. Step 3: Cross multiply
    20,561,566.66x = 28,373,988.53 × 12,306,177.47
  4. Step 4: Simplify right side
    20,561,566.66x = 349,175,338,483,624.81
  5. Step 5: Solve for x
    x = 349,175,338,483,624.81/20,561,566.66
  6. Step 6: Final answer
    x = 16,981,942.30

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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.