Home / 13,315,595.81-18,375,526.16-7,515,606.20

Finding the Fourth Proportional to 13,315,595.81, 18,375,526.16 and 7,515,606.20

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Solution

The fourth proportional to 13,315,595.81, 18,375,526.16 and 7,515,606.20 is: 10,371,538.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,595.81 : 18,375,526.16 = 7,515,606.20 : x
  2. Step 2: Convert to fraction form
    13,315,595.81/18,375,526.16 = 7,515,606.20/x
  3. Step 3: Cross multiply
    13,315,595.81x = 18,375,526.16 × 7,515,606.20
  4. Step 4: Simplify right side
    13,315,595.81x = 138,103,218,206,902.55
  5. Step 5: Solve for x
    x = 138,103,218,206,902.55/13,315,595.81
  6. Step 6: Final answer
    x = 10,371,538.78

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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.