Home / 40,986,765.76-61,477,932.48-20,791,482.88

Finding the Fourth Proportional to 40,986,765.76, 61,477,932.48 and 20,791,482.88

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Solution

The fourth proportional to 40,986,765.76, 61,477,932.48 and 20,791,482.88 is: 31,186,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986,765.76 : 61,477,932.48 = 20,791,482.88 : x
  2. Step 2: Convert to fraction form
    40,986,765.76/61,477,932.48 = 20,791,482.88/x
  3. Step 3: Cross multiply
    40,986,765.76x = 61,477,932.48 × 20,791,482.88
  4. Step 4: Simplify right side
    40,986,765.76x = 1,278,217,380,655,715.75
  5. Step 5: Solve for x
    x = 1,278,217,380,655,715.75/40,986,765.76
  6. Step 6: Final answer
    x = 31,186,100.12

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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.