Home / 101,680,909.28-140,319,745.22-55,271,163.20

Finding the Fourth Proportional to 101,680,909.28, 140,319,745.22 and 55,271,163.20

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Solution

The fourth proportional to 101,680,909.28, 140,319,745.22 and 55,271,163.20 is: 76,274,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,680,909.28 : 140,319,745.22 = 55,271,163.20 : x
  2. Step 2: Convert to fraction form
    101,680,909.28/140,319,745.22 = 55,271,163.20/x
  3. Step 3: Cross multiply
    101,680,909.28x = 140,319,745.22 × 55,271,163.20
  4. Step 4: Simplify right side
    101,680,909.28x = 7,755,635,538,237,040
  5. Step 5: Solve for x
    x = 7,755,635,538,237,040/101,680,909.28
  6. Step 6: Final answer
    x = 76,274,254.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.