Home / 80,568,468.20-120,852,702.30-69,608,973.80

Finding the Fourth Proportional to 80,568,468.20, 120,852,702.30 and 69,608,973.80

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Solution

The fourth proportional to 80,568,468.20, 120,852,702.30 and 69,608,973.80 is: 104,413,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568,468.20 : 120,852,702.30 = 69,608,973.80 : x
  2. Step 2: Convert to fraction form
    80,568,468.20/120,852,702.30 = 69,608,973.80/x
  3. Step 3: Cross multiply
    80,568,468.20x = 120,852,702.30 × 69,608,973.80
  4. Step 4: Simplify right side
    80,568,468.20x = 8,412,432,588,059,899
  5. Step 5: Solve for x
    x = 8,412,432,588,059,899/80,568,468.20
  6. Step 6: Final answer
    x = 104,413,460.70

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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.