Home / 12,144,970,669.20-18,217,456,003.80-7,243,179,334.80

Finding the Fourth Proportional to 12,144,970,669.20, 18,217,456,003.80 and 7,243,179,334.80

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Solution

The fourth proportional to 12,144,970,669.20, 18,217,456,003.80 and 7,243,179,334.80 is: 10,864,769,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144,970,669.20 : 18,217,456,003.80 = 7,243,179,334.80 : x
  2. Step 2: Convert to fraction form
    12,144,970,669.20/18,217,456,003.80 = 7,243,179,334.80/x
  3. Step 3: Cross multiply
    12,144,970,669.20x = 18,217,456,003.80 × 7,243,179,334.80
  4. Step 4: Simplify right side
    12,144,970,669.20x = 131,952,300,859,352,350,720
  5. Step 5: Solve for x
    x = 131,952,300,859,352,350,720/12,144,970,669.20
  6. Step 6: Final answer
    x = 10,864,769,002.20

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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.