Home / 86,028,127.20-129,024,257.40-31,466,413.80

Finding the Fourth Proportional to 86,028,127.20, 129,024,257.40 and 31,466,413.80

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Solution

The fourth proportional to 86,028,127.20, 129,024,257.40 and 31,466,413.80 is: 47,193,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028,127.20 : 129,024,257.40 = 31,466,413.80 : x
  2. Step 2: Convert to fraction form
    86,028,127.20/129,024,257.40 = 31,466,413.80/x
  3. Step 3: Cross multiply
    86,028,127.20x = 129,024,257.40 × 31,466,413.80
  4. Step 4: Simplify right side
    86,028,127.20x = 4,059,930,673,586,112.50
  5. Step 5: Solve for x
    x = 4,059,930,673,586,112.50/86,028,127.20
  6. Step 6: Final answer
    x = 47,193,061.22

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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.