Home / 218,427,374.40-327,215,908.80-131,908,779.60

Finding the Fourth Proportional to 218,427,374.40, 327,215,908.80 and 131,908,779.60

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Solution

The fourth proportional to 218,427,374.40, 327,215,908.80 and 131,908,779.60 is: 197,606,418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,427,374.40 : 327,215,908.80 = 131,908,779.60 : x
  2. Step 2: Convert to fraction form
    218,427,374.40/327,215,908.80 = 131,908,779.60/x
  3. Step 3: Cross multiply
    218,427,374.40x = 327,215,908.80 × 131,908,779.60
  4. Step 4: Simplify right side
    218,427,374.40x = 43,162,651,195,512,904
  5. Step 5: Solve for x
    x = 43,162,651,195,512,904/218,427,374.40
  6. Step 6: Final answer
    x = 197,606,418.67

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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.