Home / 13,167,153.09-18,170,697.96-7,366,031.73

Finding the Fourth Proportional to 13,167,153.09, 18,170,697.96 and 7,366,031.73

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Solution

The fourth proportional to 13,167,153.09, 18,170,697.96 and 7,366,031.73 is: 10,165,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167,153.09 : 18,170,697.96 = 7,366,031.73 : x
  2. Step 2: Convert to fraction form
    13,167,153.09/18,170,697.96 = 7,366,031.73/x
  3. Step 3: Cross multiply
    13,167,153.09x = 18,170,697.96 × 7,366,031.73
  4. Step 4: Simplify right side
    13,167,153.09x = 133,845,937,729,606.28
  5. Step 5: Solve for x
    x = 133,845,937,729,606.28/13,167,153.09
  6. Step 6: Final answer
    x = 10,165,138.72

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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.