Home / 123,269,275.91-170,111,766.56-66,754,120.40

Finding the Fourth Proportional to 123,269,275.91, 170,111,766.56 and 66,754,120.40

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Solution

The fourth proportional to 123,269,275.91, 170,111,766.56 and 66,754,120.40 is: 92,120,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,269,275.91 : 170,111,766.56 = 66,754,120.40 : x
  2. Step 2: Convert to fraction form
    123,269,275.91/170,111,766.56 = 66,754,120.40/x
  3. Step 3: Cross multiply
    123,269,275.91x = 170,111,766.56 × 66,754,120.40
  4. Step 4: Simplify right side
    123,269,275.91x = 11,355,661,345,218,606
  5. Step 5: Solve for x
    x = 11,355,661,345,218,606/123,269,275.91
  6. Step 6: Final answer
    x = 92,120,775.93

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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.