Home / 9,160,720.80-13,741,081.20-5,129,642.40

Finding the Fourth Proportional to 9,160,720.80, 13,741,081.20 and 5,129,642.40

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Solution

The fourth proportional to 9,160,720.80, 13,741,081.20 and 5,129,642.40 is: 7,694,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160,720.80 : 13,741,081.20 = 5,129,642.40 : x
  2. Step 2: Convert to fraction form
    9,160,720.80/13,741,081.20 = 5,129,642.40/x
  3. Step 3: Cross multiply
    9,160,720.80x = 13,741,081.20 × 5,129,642.40
  4. Step 4: Simplify right side
    9,160,720.80x = 70,486,832,745,362.88
  5. Step 5: Solve for x
    x = 70,486,832,745,362.88/9,160,720.80
  6. Step 6: Final answer
    x = 7,694,463.60

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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.