Home / 1,277,160,780.80-1,915,741,171.20-932,787,012.80

Finding the Fourth Proportional to 1,277,160,780.80, 1,915,741,171.20 and 932,787,012.80

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Solution

The fourth proportional to 1,277,160,780.80, 1,915,741,171.20 and 932,787,012.80 is: 1,399,180,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,160,780.80 : 1,915,741,171.20 = 932,787,012.80 : x
  2. Step 2: Convert to fraction form
    1,277,160,780.80/1,915,741,171.20 = 932,787,012.80/x
  3. Step 3: Cross multiply
    1,277,160,780.80x = 1,915,741,171.20 × 932,787,012.80
  4. Step 4: Simplify right side
    1,277,160,780.80x = 1,786,978,484,381,621,248
  5. Step 5: Solve for x
    x = 1,786,978,484,381,621,248/1,277,160,780.80
  6. Step 6: Final answer
    x = 1,399,180,519.20

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Double scale
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1.5x scale

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.