Home / 8,165,711.70-12,248,567.55-2,780,442.90

Finding the Fourth Proportional to 8,165,711.70, 12,248,567.55 and 2,780,442.90

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Solution

The fourth proportional to 8,165,711.70, 12,248,567.55 and 2,780,442.90 is: 4,170,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165,711.70 : 12,248,567.55 = 2,780,442.90 : x
  2. Step 2: Convert to fraction form
    8,165,711.70/12,248,567.55 = 2,780,442.90/x
  3. Step 3: Cross multiply
    8,165,711.70x = 12,248,567.55 × 2,780,442.90
  4. Step 4: Simplify right side
    8,165,711.70x = 34,056,442,679,567.89
  5. Step 5: Solve for x
    x = 34,056,442,679,567.89/8,165,711.70
  6. Step 6: Final answer
    x = 4,170,664.35

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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.