Home / 91,898,913.66-137,864,765.13-30,491,757.18

Finding the Fourth Proportional to 91,898,913.66, 137,864,765.13 and 30,491,757.18

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Solution

The fourth proportional to 91,898,913.66, 137,864,765.13 and 30,491,757.18 is: 45,743,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,898,913.66 : 137,864,765.13 = 30,491,757.18 : x
  2. Step 2: Convert to fraction form
    91,898,913.66/137,864,765.13 = 30,491,757.18/x
  3. Step 3: Cross multiply
    91,898,913.66x = 137,864,765.13 × 30,491,757.18
  4. Step 4: Simplify right side
    91,898,913.66x = 4,203,738,942,021,691
  5. Step 5: Solve for x
    x = 4,203,738,942,021,691/91,898,913.66
  6. Step 6: Final answer
    x = 45,743,075.46

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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.