Home / 40,131,938.30-55,381,770.46-21,797,355.02

Finding the Fourth Proportional to 40,131,938.30, 55,381,770.46 and 21,797,355.02

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Solution

The fourth proportional to 40,131,938.30, 55,381,770.46 and 21,797,355.02 is: 30,080,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,131,938.30 : 55,381,770.46 = 21,797,355.02 : x
  2. Step 2: Convert to fraction form
    40,131,938.30/55,381,770.46 = 21,797,355.02/x
  3. Step 3: Cross multiply
    40,131,938.30x = 55,381,770.46 × 21,797,355.02
  4. Step 4: Simplify right side
    40,131,938.30x = 1,207,176,112,103,106.50
  5. Step 5: Solve for x
    x = 1,207,176,112,103,106.50/40,131,938.30
  6. Step 6: Final answer
    x = 30,080,184.60

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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.