Home / 8,077,910.20-12,116,865.30-7,416,561.40

Finding the Fourth Proportional to 8,077,910.20, 12,116,865.30 and 7,416,561.40

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Solution

The fourth proportional to 8,077,910.20, 12,116,865.30 and 7,416,561.40 is: 11,124,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077,910.20 : 12,116,865.30 = 7,416,561.40 : x
  2. Step 2: Convert to fraction form
    8,077,910.20/12,116,865.30 = 7,416,561.40/x
  3. Step 3: Cross multiply
    8,077,910.20x = 12,116,865.30 × 7,416,561.40
  4. Step 4: Simplify right side
    8,077,910.20x = 89,865,475,472,979.44
  5. Step 5: Solve for x
    x = 89,865,475,472,979.44/8,077,910.20
  6. Step 6: Final answer
    x = 11,124,842.10

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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.