Home / 72,139,627.44-108,211,016.52-43,409,795.76

Finding the Fourth Proportional to 72,139,627.44, 108,211,016.52 and 43,409,795.76

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Solution

The fourth proportional to 72,139,627.44, 108,211,016.52 and 43,409,795.76 is: 65,115,641.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,139,627.44 : 108,211,016.52 = 43,409,795.76 : x
  2. Step 2: Convert to fraction form
    72,139,627.44/108,211,016.52 = 43,409,795.76/x
  3. Step 3: Cross multiply
    72,139,627.44x = 108,211,016.52 × 43,409,795.76
  4. Step 4: Simplify right side
    72,139,627.44x = 4,697,418,126,115,186
  5. Step 5: Solve for x
    x = 4,697,418,126,115,186/72,139,627.44
  6. Step 6: Final answer
    x = 65,115,641.61

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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.