Home / 8,121,295.72-12,182,695.18-2,656,421.64

Finding the Fourth Proportional to 8,121,295.72, 12,182,695.18 and 2,656,421.64

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Solution

The fourth proportional to 8,121,295.72, 12,182,695.18 and 2,656,421.64 is: 3,984,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,295.72 : 12,182,695.18 = 2,656,421.64 : x
  2. Step 2: Convert to fraction form
    8,121,295.72/12,182,695.18 = 2,656,421.64/x
  3. Step 3: Cross multiply
    8,121,295.72x = 12,182,695.18 × 2,656,421.64
  4. Step 4: Simplify right side
    8,121,295.72x = 32,362,375,109,675.70
  5. Step 5: Solve for x
    x = 32,362,375,109,675.70/8,121,295.72
  6. Step 6: Final answer
    x = 3,984,878.30

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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.