Home / 12,927,945.12-17,840,684.60-7,126,934.45

Finding the Fourth Proportional to 12,927,945.12, 17,840,684.60 and 7,126,934.45

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Solution

The fourth proportional to 12,927,945.12, 17,840,684.60 and 7,126,934.45 is: 9,835,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927,945.12 : 17,840,684.60 = 7,126,934.45 : x
  2. Step 2: Convert to fraction form
    12,927,945.12/17,840,684.60 = 7,126,934.45/x
  3. Step 3: Cross multiply
    12,927,945.12x = 17,840,684.60 × 7,126,934.45
  4. Step 4: Simplify right side
    12,927,945.12x = 127,149,389,656,114.95
  5. Step 5: Solve for x
    x = 127,149,389,656,114.95/12,927,945.12
  6. Step 6: Final answer
    x = 9,835,235.88

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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.