Home / 12,902,190.40-17,805,025.52-7,021,847.68

Finding the Fourth Proportional to 12,902,190.40, 17,805,025.52 and 7,021,847.68

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Solution

The fourth proportional to 12,902,190.40, 17,805,025.52 and 7,021,847.68 is: 9,690,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902,190.40 : 17,805,025.52 = 7,021,847.68 : x
  2. Step 2: Convert to fraction form
    12,902,190.40/17,805,025.52 = 7,021,847.68/x
  3. Step 3: Cross multiply
    12,902,190.40x = 17,805,025.52 × 7,021,847.68
  4. Step 4: Simplify right side
    12,902,190.40x = 125,024,177,139,952.78
  5. Step 5: Solve for x
    x = 125,024,177,139,952.78/12,902,190.40
  6. Step 6: Final answer
    x = 9,690,151.30

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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.