Home / 10,142,396.91-15,177,229.35-8,780,853.93

Finding the Fourth Proportional to 10,142,396.91, 15,177,229.35 and 8,780,853.93

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Solution

The fourth proportional to 10,142,396.91, 15,177,229.35 and 8,780,853.93 is: 13,139,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142,396.91 : 15,177,229.35 = 8,780,853.93 : x
  2. Step 2: Convert to fraction form
    10,142,396.91/15,177,229.35 = 8,780,853.93/x
  3. Step 3: Cross multiply
    10,142,396.91x = 15,177,229.35 × 8,780,853.93
  4. Step 4: Simplify right side
    10,142,396.91x = 133,269,033,984,458.84
  5. Step 5: Solve for x
    x = 133,269,033,984,458.84/10,142,396.91
  6. Step 6: Final answer
    x = 13,139,796.75

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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.