Home / 20,818,540.12-28,732,602.18-11,996,275

Finding the Fourth Proportional to 20,818,540.12, 28,732,602.18 and 11,996,275

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Solution

The fourth proportional to 20,818,540.12, 28,732,602.18 and 11,996,275 is: 16,556,597.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818,540.12 : 28,732,602.18 = 11,996,275 : x
  2. Step 2: Convert to fraction form
    20,818,540.12/28,732,602.18 = 11,996,275/x
  3. Step 3: Cross multiply
    20,818,540.12x = 28,732,602.18 × 11,996,275
  4. Step 4: Simplify right side
    20,818,540.12x = 344,684,197,216,879.50
  5. Step 5: Solve for x
    x = 344,684,197,216,879.50/20,818,540.12
  6. Step 6: Final answer
    x = 16,556,597.88

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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.