Home / 871,487,999.40-1,307,231,999.10-804,975,205.80

Finding the Fourth Proportional to 871,487,999.40, 1,307,231,999.10 and 804,975,205.80

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Solution

The fourth proportional to 871,487,999.40, 1,307,231,999.10 and 804,975,205.80 is: 1,207,462,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,487,999.40 : 1,307,231,999.10 = 804,975,205.80 : x
  2. Step 2: Convert to fraction form
    871,487,999.40/1,307,231,999.10 = 804,975,205.80/x
  3. Step 3: Cross multiply
    871,487,999.40x = 1,307,231,999.10 × 804,975,205.80
  4. Step 4: Simplify right side
    871,487,999.40x = 1,052,289,347,503,867,776
  5. Step 5: Solve for x
    x = 1,052,289,347,503,867,776/871,487,999.40
  6. Step 6: Final answer
    x = 1,207,462,808.70

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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.