Home / 819,181,983.20-1,228,932,407.10-236,935,223.60

Finding the Fourth Proportional to 819,181,983.20, 1,228,932,407.10 and 236,935,223.60

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Solution

The fourth proportional to 819,181,983.20, 1,228,932,407.10 and 236,935,223.60 is: 355,448,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,181,983.20 : 1,228,932,407.10 = 236,935,223.60 : x
  2. Step 2: Convert to fraction form
    819,181,983.20/1,228,932,407.10 = 236,935,223.60/x
  3. Step 3: Cross multiply
    819,181,983.20x = 1,228,932,407.10 × 236,935,223.60
  4. Step 4: Simplify right side
    819,181,983.20x = 291,177,374,665,524,672
  5. Step 5: Solve for x
    x = 291,177,374,665,524,672/819,181,983.20
  6. Step 6: Final answer
    x = 355,448,948.63

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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.