Home / 85,192,622.24-127,788,932.75-20,496,426.57

Finding the Fourth Proportional to 85,192,622.24, 127,788,932.75 and 20,496,426.57

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Solution

The fourth proportional to 85,192,622.24, 127,788,932.75 and 20,496,426.57 is: 30,744,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,192,622.24 : 127,788,932.75 = 20,496,426.57 : x
  2. Step 2: Convert to fraction form
    85,192,622.24/127,788,932.75 = 20,496,426.57/x
  3. Step 3: Cross multiply
    85,192,622.24x = 127,788,932.75 × 20,496,426.57
  4. Step 4: Simplify right side
    85,192,622.24x = 2,619,216,476,466,561
  5. Step 5: Solve for x
    x = 2,619,216,476,466,561/85,192,622.24
  6. Step 6: Final answer
    x = 30,744,639.71

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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.