Home / 12,947,369.13-17,866,097.33-7,145,777.21

Finding the Fourth Proportional to 12,947,369.13, 17,866,097.33 and 7,145,777.21

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Solution

The fourth proportional to 12,947,369.13, 17,866,097.33 and 7,145,777.21 is: 9,860,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,369.13 : 17,866,097.33 = 7,145,777.21 : x
  2. Step 2: Convert to fraction form
    12,947,369.13/17,866,097.33 = 7,145,777.21/x
  3. Step 3: Cross multiply
    12,947,369.13x = 17,866,097.33 × 7,145,777.21
  4. Step 4: Simplify right side
    12,947,369.13x = 127,667,151,132,355.83
  5. Step 5: Solve for x
    x = 127,667,151,132,355.83/12,947,369.13
  6. Step 6: Final answer
    x = 9,860,470.48

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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.