Home / 61,280,825.20-91,920,450.48-20,359,080.88

Finding the Fourth Proportional to 61,280,825.20, 91,920,450.48 and 20,359,080.88

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Solution

The fourth proportional to 61,280,825.20, 91,920,450.48 and 20,359,080.88 is: 30,538,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,280,825.20 : 91,920,450.48 = 20,359,080.88 : x
  2. Step 2: Convert to fraction form
    61,280,825.20/91,920,450.48 = 20,359,080.88/x
  3. Step 3: Cross multiply
    61,280,825.20x = 91,920,450.48 × 20,359,080.88
  4. Step 4: Simplify right side
    61,280,825.20x = 1,871,415,885,542,207
  5. Step 5: Solve for x
    x = 1,871,415,885,542,207/61,280,825.20
  6. Step 6: Final answer
    x = 30,538,359.75

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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.