Home / 86,205,792.20-129,308,688.30-82,804,569.80

Finding the Fourth Proportional to 86,205,792.20, 129,308,688.30 and 82,804,569.80

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Solution

The fourth proportional to 86,205,792.20, 129,308,688.30 and 82,804,569.80 is: 124,206,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205,792.20 : 129,308,688.30 = 82,804,569.80 : x
  2. Step 2: Convert to fraction form
    86,205,792.20/129,308,688.30 = 82,804,569.80/x
  3. Step 3: Cross multiply
    86,205,792.20x = 129,308,688.30 × 82,804,569.80
  4. Step 4: Simplify right side
    86,205,792.20x = 10,707,350,306,083,792
  5. Step 5: Solve for x
    x = 10,707,350,306,083,792/86,205,792.20
  6. Step 6: Final answer
    x = 124,206,854.70

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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.