Home / 431,567,998.30-647,351,997.45-247,335,118.30

Finding the Fourth Proportional to 431,567,998.30, 647,351,997.45 and 247,335,118.30

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Solution

The fourth proportional to 431,567,998.30, 647,351,997.45 and 247,335,118.30 is: 371,002,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,567,998.30 : 647,351,997.45 = 247,335,118.30 : x
  2. Step 2: Convert to fraction form
    431,567,998.30/647,351,997.45 = 247,335,118.30/x
  3. Step 3: Cross multiply
    431,567,998.30x = 647,351,997.45 × 247,335,118.30
  4. Step 4: Simplify right side
    431,567,998.30x = 160,112,882,871,037,056
  5. Step 5: Solve for x
    x = 160,112,882,871,037,056/431,567,998.30
  6. Step 6: Final answer
    x = 371,002,677.45

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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.