Home / 81,687,542.41-112,728,806.76-45,018,113.41

Finding the Fourth Proportional to 81,687,542.41, 112,728,806.76 and 45,018,113.41

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Solution

The fourth proportional to 81,687,542.41, 112,728,806.76 and 45,018,113.41 is: 62,124,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,687,542.41 : 112,728,806.76 = 45,018,113.41 : x
  2. Step 2: Convert to fraction form
    81,687,542.41/112,728,806.76 = 45,018,113.41/x
  3. Step 3: Cross multiply
    81,687,542.41x = 112,728,806.76 × 45,018,113.41
  4. Step 4: Simplify right side
    81,687,542.41x = 5,074,838,207,295,654
  5. Step 5: Solve for x
    x = 5,074,838,207,295,654/81,687,542.41
  6. Step 6: Final answer
    x = 62,124,995.53

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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.