Home / 13,149,389.56-18,146,544.90-7,348,184.92

Finding the Fourth Proportional to 13,149,389.56, 18,146,544.90 and 7,348,184.92

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Solution

The fourth proportional to 13,149,389.56, 18,146,544.90 and 7,348,184.92 is: 10,140,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,389.56 : 18,146,544.90 = 7,348,184.92 : x
  2. Step 2: Convert to fraction form
    13,149,389.56/18,146,544.90 = 7,348,184.92/x
  3. Step 3: Cross multiply
    13,149,389.56x = 18,146,544.90 × 7,348,184.92
  4. Step 4: Simplify right side
    13,149,389.56x = 133,344,167,584,282.89
  5. Step 5: Solve for x
    x = 133,344,167,584,282.89/13,149,389.56
  6. Step 6: Final answer
    x = 10,140,711.63

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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.