Home / 213,890,321.56-320,797,557.10-97,278,363.45

Finding the Fourth Proportional to 213,890,321.56, 320,797,557.10 and 97,278,363.45

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Solution

The fourth proportional to 213,890,321.56, 320,797,557.10 and 97,278,363.45 is: 145,900,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,890,321.56 : 320,797,557.10 = 97,278,363.45 : x
  2. Step 2: Convert to fraction form
    213,890,321.56/320,797,557.10 = 97,278,363.45/x
  3. Step 3: Cross multiply
    213,890,321.56x = 320,797,557.10 × 97,278,363.45
  4. Step 4: Simplify right side
    213,890,321.56x = 31,206,661,353,445,932
  5. Step 5: Solve for x
    x = 31,206,661,353,445,932/213,890,321.56
  6. Step 6: Final answer
    x = 145,900,296.59

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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.