Home / 373,247,998.20-559,871,997.30-257,989,015.80

Finding the Fourth Proportional to 373,247,998.20, 559,871,997.30 and 257,989,015.80

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Solution

The fourth proportional to 373,247,998.20, 559,871,997.30 and 257,989,015.80 is: 386,983,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,247,998.20 : 559,871,997.30 = 257,989,015.80 : x
  2. Step 2: Convert to fraction form
    373,247,998.20/559,871,997.30 = 257,989,015.80/x
  3. Step 3: Cross multiply
    373,247,998.20x = 559,871,997.30 × 257,989,015.80
  4. Step 4: Simplify right side
    373,247,998.20x = 144,440,825,557,407,264
  5. Step 5: Solve for x
    x = 144,440,825,557,407,264/373,247,998.20
  6. Step 6: Final answer
    x = 386,983,523.70

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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.