Home / 126,176,413.10-189,264,619.65-68,780,785.10

Finding the Fourth Proportional to 126,176,413.10, 189,264,619.65 and 68,780,785.10

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Solution

The fourth proportional to 126,176,413.10, 189,264,619.65 and 68,780,785.10 is: 103,171,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176,413.10 : 189,264,619.65 = 68,780,785.10 : x
  2. Step 2: Convert to fraction form
    126,176,413.10/189,264,619.65 = 68,780,785.10/x
  3. Step 3: Cross multiply
    126,176,413.10x = 189,264,619.65 × 68,780,785.10
  4. Step 4: Simplify right side
    126,176,413.10x = 13,017,769,131,179,886
  5. Step 5: Solve for x
    x = 13,017,769,131,179,886/126,176,413.10
  6. Step 6: Final answer
    x = 103,171,177.65

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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.