Home / 871,487,998.40-1,307,231,997.60-804,975,204.80

Finding the Fourth Proportional to 871,487,998.40, 1,307,231,997.60 and 804,975,204.80

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Solution

The fourth proportional to 871,487,998.40, 1,307,231,997.60 and 804,975,204.80 is: 1,207,462,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,487,998.40 : 1,307,231,997.60 = 804,975,204.80 : x
  2. Step 2: Convert to fraction form
    871,487,998.40/1,307,231,997.60 = 804,975,204.80/x
  3. Step 3: Cross multiply
    871,487,998.40x = 1,307,231,997.60 × 804,975,204.80
  4. Step 4: Simplify right side
    871,487,998.40x = 1,052,289,344,989,172,992
  5. Step 5: Solve for x
    x = 1,052,289,344,989,172,992/871,487,998.40
  6. Step 6: Final answer
    x = 1,207,462,807.20

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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.