Home / 20,773,454.80-31,160,182.20-11,815,502.80

Finding the Fourth Proportional to 20,773,454.80, 31,160,182.20 and 11,815,502.80

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Solution

The fourth proportional to 20,773,454.80, 31,160,182.20 and 11,815,502.80 is: 17,723,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773,454.80 : 31,160,182.20 = 11,815,502.80 : x
  2. Step 2: Convert to fraction form
    20,773,454.80/31,160,182.20 = 11,815,502.80/x
  3. Step 3: Cross multiply
    20,773,454.80x = 31,160,182.20 × 11,815,502.80
  4. Step 4: Simplify right side
    20,773,454.80x = 368,173,220,032,610.19
  5. Step 5: Solve for x
    x = 368,173,220,032,610.19/20,773,454.80
  6. Step 6: Final answer
    x = 17,723,254.20

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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.