Home / 12,487,961.70-18,727,276.95-8,690,163.30

Finding the Fourth Proportional to 12,487,961.70, 18,727,276.95 and 8,690,163.30

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Solution

The fourth proportional to 12,487,961.70, 18,727,276.95 and 8,690,163.30 is: 13,031,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,961.70 : 18,727,276.95 = 8,690,163.30 : x
  2. Step 2: Convert to fraction form
    12,487,961.70/18,727,276.95 = 8,690,163.30/x
  3. Step 3: Cross multiply
    12,487,961.70x = 18,727,276.95 × 8,690,163.30
  4. Step 4: Simplify right side
    12,487,961.70x = 162,743,094,859,825.94
  5. Step 5: Solve for x
    x = 162,743,094,859,825.94/12,487,961.70
  6. Step 6: Final answer
    x = 13,031,998.24

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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.