Home / 1,189,844,747.32-1,642,025,577.66-661,231,013.56

Finding the Fourth Proportional to 1,189,844,747.32, 1,642,025,577.66 and 661,231,013.56

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Solution

The fourth proportional to 1,189,844,747.32, 1,642,025,577.66 and 661,231,013.56 is: 912,520,931.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,844,747.32 : 1,642,025,577.66 = 661,231,013.56 : x
  2. Step 2: Convert to fraction form
    1,189,844,747.32/1,642,025,577.66 = 661,231,013.56/x
  3. Step 3: Cross multiply
    1,189,844,747.32x = 1,642,025,577.66 × 661,231,013.56
  4. Step 4: Simplify right side
    1,189,844,747.32x = 1,085,758,237,007,566,208
  5. Step 5: Solve for x
    x = 1,085,758,237,007,566,208/1,189,844,747.32
  6. Step 6: Final answer
    x = 912,520,931.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.