Home / 20,688,198.02-31,016,193.80-13,386,229.46

Finding the Fourth Proportional to 20,688,198.02, 31,016,193.80 and 13,386,229.46

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Solution

The fourth proportional to 20,688,198.02, 31,016,193.80 and 13,386,229.46 is: 20,068,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688,198.02 : 31,016,193.80 = 13,386,229.46 : x
  2. Step 2: Convert to fraction form
    20,688,198.02/31,016,193.80 = 13,386,229.46/x
  3. Step 3: Cross multiply
    20,688,198.02x = 31,016,193.80 × 13,386,229.46
  4. Step 4: Simplify right side
    20,688,198.02x = 415,189,887,182,629.38
  5. Step 5: Solve for x
    x = 415,189,887,182,629.38/20,688,198.02
  6. Step 6: Final answer
    x = 20,068,924.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.