Home / 18,139,538.34-27,209,138.63-7,354,275.55

Finding the Fourth Proportional to 18,139,538.34, 27,209,138.63 and 7,354,275.55

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Solution

The fourth proportional to 18,139,538.34, 27,209,138.63 and 7,354,275.55 is: 11,031,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,538.34 : 27,209,138.63 = 7,354,275.55 : x
  2. Step 2: Convert to fraction form
    18,139,538.34/27,209,138.63 = 7,354,275.55/x
  3. Step 3: Cross multiply
    18,139,538.34x = 27,209,138.63 × 7,354,275.55
  4. Step 4: Simplify right side
    18,139,538.34x = 200,103,502,858,375.28
  5. Step 5: Solve for x
    x = 200,103,502,858,375.28/18,139,538.34
  6. Step 6: Final answer
    x = 11,031,344.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.