Home / 31,518,754.56-47,274,587.28-8,491,390.92

Finding the Fourth Proportional to 31,518,754.56, 47,274,587.28 and 8,491,390.92

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Solution

The fourth proportional to 31,518,754.56, 47,274,587.28 and 8,491,390.92 is: 12,736,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518,754.56 : 47,274,587.28 = 8,491,390.92 : x
  2. Step 2: Convert to fraction form
    31,518,754.56/47,274,587.28 = 8,491,390.92/x
  3. Step 3: Cross multiply
    31,518,754.56x = 47,274,587.28 × 8,491,390.92
  4. Step 4: Simplify right side
    31,518,754.56x = 401,427,001,176,139.50
  5. Step 5: Solve for x
    x = 401,427,001,176,139.50/31,518,754.56
  6. Step 6: Final answer
    x = 12,736,131.45

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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.