Home / 1,115,324,119.20-1,672,631,240.48-368,200,781.76

Finding the Fourth Proportional to 1,115,324,119.20, 1,672,631,240.48 and 368,200,781.76

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Solution

The fourth proportional to 1,115,324,119.20, 1,672,631,240.48 and 368,200,781.76 is: 552,183,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,324,119.20 : 1,672,631,240.48 = 368,200,781.76 : x
  2. Step 2: Convert to fraction form
    1,115,324,119.20/1,672,631,240.48 = 368,200,781.76/x
  3. Step 3: Cross multiply
    1,115,324,119.20x = 1,672,631,240.48 × 368,200,781.76
  4. Step 4: Simplify right side
    1,115,324,119.20x = 615,864,130,340,934,528
  5. Step 5: Solve for x
    x = 615,864,130,340,934,528/1,115,324,119.20
  6. Step 6: Final answer
    x = 552,183,997.22

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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.