Home / 129,659,331.93-178,930,413.47-70,120,626.75

Finding the Fourth Proportional to 129,659,331.93, 178,930,413.47 and 70,120,626.75

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Solution

The fourth proportional to 129,659,331.93, 178,930,413.47 and 70,120,626.75 is: 96,766,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,659,331.93 : 178,930,413.47 = 70,120,626.75 : x
  2. Step 2: Convert to fraction form
    129,659,331.93/178,930,413.47 = 70,120,626.75/x
  3. Step 3: Cross multiply
    129,659,331.93x = 178,930,413.47 × 70,120,626.75
  4. Step 4: Simplify right side
    129,659,331.93x = 12,546,712,737,869,236
  5. Step 5: Solve for x
    x = 12,546,712,737,869,236/129,659,331.93
  6. Step 6: Final answer
    x = 96,766,754.47

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1.5x scale

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.