Home / 67,008,712.43-100,518,858.86-18,486,566.25

Finding the Fourth Proportional to 67,008,712.43, 100,518,858.86 and 18,486,566.25

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Solution

The fourth proportional to 67,008,712.43, 100,518,858.86 and 18,486,566.25 is: 27,731,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,008,712.43 : 100,518,858.86 = 18,486,566.25 : x
  2. Step 2: Convert to fraction form
    67,008,712.43/100,518,858.86 = 18,486,566.25/x
  3. Step 3: Cross multiply
    67,008,712.43x = 100,518,858.86 × 18,486,566.25
  4. Step 4: Simplify right side
    67,008,712.43x = 1,858,248,543,597,356.75
  5. Step 5: Solve for x
    x = 1,858,248,543,597,356.75/67,008,712.43
  6. Step 6: Final answer
    x = 27,731,446.80

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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.