Home / 31,056,263.88-42,860,833.20-18,670,367.04

Finding the Fourth Proportional to 31,056,263.88, 42,860,833.20 and 18,670,367.04

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Solution

The fourth proportional to 31,056,263.88, 42,860,833.20 and 18,670,367.04 is: 25,767,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056,263.88 : 42,860,833.20 = 18,670,367.04 : x
  2. Step 2: Convert to fraction form
    31,056,263.88/42,860,833.20 = 18,670,367.04/x
  3. Step 3: Cross multiply
    31,056,263.88x = 42,860,833.20 × 18,670,367.04
  4. Step 4: Simplify right side
    31,056,263.88x = 800,227,487,484,217.75
  5. Step 5: Solve for x
    x = 800,227,487,484,217.75/31,056,263.88
  6. Step 6: Final answer
    x = 25,767,023.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.