Home / 123,422,549.76-170,324,657.28-71,222,417.28

Finding the Fourth Proportional to 123,422,549.76, 170,324,657.28 and 71,222,417.28

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Solution

The fourth proportional to 123,422,549.76, 170,324,657.28 and 71,222,417.28 is: 98,287,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,422,549.76 : 170,324,657.28 = 71,222,417.28 : x
  2. Step 2: Convert to fraction form
    123,422,549.76/170,324,657.28 = 71,222,417.28/x
  3. Step 3: Cross multiply
    123,422,549.76x = 170,324,657.28 × 71,222,417.28
  4. Step 4: Simplify right side
    123,422,549.76x = 12,130,933,813,869,150
  5. Step 5: Solve for x
    x = 12,130,933,813,869,150/123,422,549.76
  6. Step 6: Final answer
    x = 98,287,823.72

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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.