Home / 15,004,703.20-20,706,510.72-8,129,185.06

Finding the Fourth Proportional to 15,004,703.20, 20,706,510.72 and 8,129,185.06

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Solution

The fourth proportional to 15,004,703.20, 20,706,510.72 and 8,129,185.06 is: 11,218,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,703.20 : 20,706,510.72 = 8,129,185.06 : x
  2. Step 2: Convert to fraction form
    15,004,703.20/20,706,510.72 = 8,129,185.06/x
  3. Step 3: Cross multiply
    15,004,703.20x = 20,706,510.72 × 8,129,185.06
  4. Step 4: Simplify right side
    15,004,703.20x = 168,327,057,589,753.81
  5. Step 5: Solve for x
    x = 168,327,057,589,753.81/15,004,703.20
  6. Step 6: Final answer
    x = 11,218,286.38

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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.