Home / 67,154,477.85-100,731,716.78-21,720,865.05

Finding the Fourth Proportional to 67,154,477.85, 100,731,716.78 and 21,720,865.05

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Solution

The fourth proportional to 67,154,477.85, 100,731,716.78 and 21,720,865.05 is: 32,581,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154,477.85 : 100,731,716.78 = 21,720,865.05 : x
  2. Step 2: Convert to fraction form
    67,154,477.85/100,731,716.78 = 21,720,865.05/x
  3. Step 3: Cross multiply
    67,154,477.85x = 100,731,716.78 × 21,720,865.05
  4. Step 4: Simplify right side
    67,154,477.85x = 2,187,980,026,324,596.50
  5. Step 5: Solve for x
    x = 2,187,980,026,324,596.50/67,154,477.85
  6. Step 6: Final answer
    x = 32,581,297.58

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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.