Home / 217,609,660.80-326,225,534.40-131,256,403.20

Finding the Fourth Proportional to 217,609,660.80, 326,225,534.40 and 131,256,403.20

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Solution

The fourth proportional to 217,609,660.80, 326,225,534.40 and 131,256,403.20 is: 196,770,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,609,660.80 : 326,225,534.40 = 131,256,403.20 : x
  2. Step 2: Convert to fraction form
    217,609,660.80/326,225,534.40 = 131,256,403.20/x
  3. Step 3: Cross multiply
    217,609,660.80x = 326,225,534.40 × 131,256,403.20
  4. Step 4: Simplify right side
    217,609,660.80x = 42,819,190,277,341,864
  5. Step 5: Solve for x
    x = 42,819,190,277,341,864/217,609,660.80
  6. Step 6: Final answer
    x = 196,770,631.05

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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.