Home / 12,861,108.67-19,287,599.91-4,223,785.87

Finding the Fourth Proportional to 12,861,108.67, 19,287,599.91 and 4,223,785.87

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Solution

The fourth proportional to 12,861,108.67, 19,287,599.91 and 4,223,785.87 is: 6,334,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,108.67 : 19,287,599.91 = 4,223,785.87 : x
  2. Step 2: Convert to fraction form
    12,861,108.67/19,287,599.91 = 4,223,785.87/x
  3. Step 3: Cross multiply
    12,861,108.67x = 19,287,599.91 × 4,223,785.87
  4. Step 4: Simplify right side
    12,861,108.67x = 81,466,691,966,071.28
  5. Step 5: Solve for x
    x = 81,466,691,966,071.28/12,861,108.67
  6. Step 6: Final answer
    x = 6,334,344.42

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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.