Home / 20,864,034.96-28,791,939.48-11,570,105.52

Finding the Fourth Proportional to 20,864,034.96, 28,791,939.48 and 11,570,105.52

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Solution

The fourth proportional to 20,864,034.96, 28,791,939.48 and 11,570,105.52 is: 15,966,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,034.96 : 28,791,939.48 = 11,570,105.52 : x
  2. Step 2: Convert to fraction form
    20,864,034.96/28,791,939.48 = 11,570,105.52/x
  3. Step 3: Cross multiply
    20,864,034.96x = 28,791,939.48 × 11,570,105.52
  4. Step 4: Simplify right side
    20,864,034.96x = 333,125,777,909,053.94
  5. Step 5: Solve for x
    x = 333,125,777,909,053.94/20,864,034.96
  6. Step 6: Final answer
    x = 15,966,507.85

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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.