Home / 20,793,117.60-31,185,010.72-10,004,909.12

Finding the Fourth Proportional to 20,793,117.60, 31,185,010.72 and 10,004,909.12

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Solution

The fourth proportional to 20,793,117.60, 31,185,010.72 and 10,004,909.12 is: 15,005,118.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,117.60 : 31,185,010.72 = 10,004,909.12 : x
  2. Step 2: Convert to fraction form
    20,793,117.60/31,185,010.72 = 10,004,909.12/x
  3. Step 3: Cross multiply
    20,793,117.60x = 31,185,010.72 × 10,004,909.12
  4. Step 4: Simplify right side
    20,793,117.60x = 312,003,198,159,825.75
  5. Step 5: Solve for x
    x = 312,003,198,159,825.75/20,793,117.60
  6. Step 6: Final answer
    x = 15,005,118.72

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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.