Home / 343,871,999.55-515,807,999.33-221,427,993.15

Finding the Fourth Proportional to 343,871,999.55, 515,807,999.33 and 221,427,993.15

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Solution

The fourth proportional to 343,871,999.55, 515,807,999.33 and 221,427,993.15 is: 332,141,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,871,999.55 : 515,807,999.33 = 221,427,993.15 : x
  2. Step 2: Convert to fraction form
    343,871,999.55/515,807,999.33 = 221,427,993.15/x
  3. Step 3: Cross multiply
    343,871,999.55x = 515,807,999.33 × 221,427,993.15
  4. Step 4: Simplify right side
    343,871,999.55x = 114,214,330,141,251,312
  5. Step 5: Solve for x
    x = 114,214,330,141,251,312/343,871,999.55
  6. Step 6: Final answer
    x = 332,141,989.73

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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.