Home / 101,691,724.12-140,202,859.10-65,864,421.34

Finding the Fourth Proportional to 101,691,724.12, 140,202,859.10 and 65,864,421.34

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Solution

The fourth proportional to 101,691,724.12, 140,202,859.10 and 65,864,421.34 is: 90,807,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,691,724.12 : 140,202,859.10 = 65,864,421.34 : x
  2. Step 2: Convert to fraction form
    101,691,724.12/140,202,859.10 = 65,864,421.34/x
  3. Step 3: Cross multiply
    101,691,724.12x = 140,202,859.10 × 65,864,421.34
  4. Step 4: Simplify right side
    101,691,724.12x = 9,234,380,184,155,224
  5. Step 5: Solve for x
    x = 9,234,380,184,155,224/101,691,724.12
  6. Step 6: Final answer
    x = 90,807,587.98

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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.