Home / 787,968,009.20-1,181,952,013.80-296,680,329.20

Finding the Fourth Proportional to 787,968,009.20, 1,181,952,013.80 and 296,680,329.20

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Solution

The fourth proportional to 787,968,009.20, 1,181,952,013.80 and 296,680,329.20 is: 445,020,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,009.20 : 1,181,952,013.80 = 296,680,329.20 : x
  2. Step 2: Convert to fraction form
    787,968,009.20/1,181,952,013.80 = 296,680,329.20/x
  3. Step 3: Cross multiply
    787,968,009.20x = 1,181,952,013.80 × 296,680,329.20
  4. Step 4: Simplify right side
    787,968,009.20x = 350,661,912,552,786,944
  5. Step 5: Solve for x
    x = 350,661,912,552,786,944/787,968,009.20
  6. Step 6: Final answer
    x = 445,020,493.80

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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.