Home / 213,192,002.70-319,788,004.05-178,754,625.90

Finding the Fourth Proportional to 213,192,002.70, 319,788,004.05 and 178,754,625.90

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Solution

The fourth proportional to 213,192,002.70, 319,788,004.05 and 178,754,625.90 is: 268,131,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,192,002.70 : 319,788,004.05 = 178,754,625.90 : x
  2. Step 2: Convert to fraction form
    213,192,002.70/319,788,004.05 = 178,754,625.90/x
  3. Step 3: Cross multiply
    213,192,002.70x = 319,788,004.05 × 178,754,625.90
  4. Step 4: Simplify right side
    213,192,002.70x = 57,163,585,031,265,440
  5. Step 5: Solve for x
    x = 57,163,585,031,265,440/213,192,002.70
  6. Step 6: Final answer
    x = 268,131,938.85

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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.