Home / 871,521,723.54-1,306,508,572.38-339,609,991.26

Finding the Fourth Proportional to 871,521,723.54, 1,306,508,572.38 and 339,609,991.26

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Solution

The fourth proportional to 871,521,723.54, 1,306,508,572.38 and 339,609,991.26 is: 509,113,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,521,723.54 : 1,306,508,572.38 = 339,609,991.26 : x
  2. Step 2: Convert to fraction form
    871,521,723.54/1,306,508,572.38 = 339,609,991.26/x
  3. Step 3: Cross multiply
    871,521,723.54x = 1,306,508,572.38 × 339,609,991.26
  4. Step 4: Simplify right side
    871,521,723.54x = 443,703,364,847,086,912
  5. Step 5: Solve for x
    x = 443,703,364,847,086,912/871,521,723.54
  6. Step 6: Final answer
    x = 509,113,373.61

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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.