Home / 20,819,959.52-28,732,442.00-11,527,529.78

Finding the Fourth Proportional to 20,819,959.52, 28,732,442.00 and 11,527,529.78

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Solution

The fourth proportional to 20,819,959.52, 28,732,442.00 and 11,527,529.78 is: 15,908,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,959.52 : 28,732,442.00 = 11,527,529.78 : x
  2. Step 2: Convert to fraction form
    20,819,959.52/28,732,442.00 = 11,527,529.78/x
  3. Step 3: Cross multiply
    20,819,959.52x = 28,732,442.00 × 11,527,529.78
  4. Step 4: Simplify right side
    20,819,959.52x = 331,214,080,605,822.94
  5. Step 5: Solve for x
    x = 331,214,080,605,822.94/20,819,959.52
  6. Step 6: Final answer
    x = 15,908,488.22

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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.