Home / 1,079,631,142.11-1,620,198,487.34-380,179,616.93

Finding the Fourth Proportional to 1,079,631,142.11, 1,620,198,487.34 and 380,179,616.93

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Solution

The fourth proportional to 1,079,631,142.11, 1,620,198,487.34 and 380,179,616.93 is: 570,534,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,631,142.11 : 1,620,198,487.34 = 380,179,616.93 : x
  2. Step 2: Convert to fraction form
    1,079,631,142.11/1,620,198,487.34 = 380,179,616.93/x
  3. Step 3: Cross multiply
    1,079,631,142.11x = 1,620,198,487.34 × 380,179,616.93
  4. Step 4: Simplify right side
    1,079,631,142.11x = 615,966,440,265,585,792
  5. Step 5: Solve for x
    x = 615,966,440,265,585,792/1,079,631,142.11
  6. Step 6: Final answer
    x = 570,534,153.97

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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.