Home / 8,085,139.65-12,123,280.80-3,287,408.40

Finding the Fourth Proportional to 8,085,139.65, 12,123,280.80 and 3,287,408.40

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Solution

The fourth proportional to 8,085,139.65, 12,123,280.80 and 3,287,408.40 is: 4,929,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,139.65 : 12,123,280.80 = 3,287,408.40 : x
  2. Step 2: Convert to fraction form
    8,085,139.65/12,123,280.80 = 3,287,408.40/x
  3. Step 3: Cross multiply
    8,085,139.65x = 12,123,280.80 × 3,287,408.40
  4. Step 4: Simplify right side
    8,085,139.65x = 39,854,175,137,478.72
  5. Step 5: Solve for x
    x = 39,854,175,137,478.72/8,085,139.65
  6. Step 6: Final answer
    x = 4,929,311.91

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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.