Home / 85,211,924.20-127,565,943.90-80,229,063.40

Finding the Fourth Proportional to 85,211,924.20, 127,565,943.90 and 80,229,063.40

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Solution

The fourth proportional to 85,211,924.20, 127,565,943.90 and 80,229,063.40 is: 120,106,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211,924.20 : 127,565,943.90 = 80,229,063.40 : x
  2. Step 2: Convert to fraction form
    85,211,924.20/127,565,943.90 = 80,229,063.40/x
  3. Step 3: Cross multiply
    85,211,924.20x = 127,565,943.90 × 80,229,063.40
  4. Step 4: Simplify right side
    85,211,924.20x = 10,234,496,200,833,944
  5. Step 5: Solve for x
    x = 10,234,496,200,833,944/85,211,924.20
  6. Step 6: Final answer
    x = 120,106,385.31

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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.