Home / 212,894,175.29-319,339,133.98-67,327,761.47

Finding the Fourth Proportional to 212,894,175.29, 319,339,133.98 and 67,327,761.47

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Solution

The fourth proportional to 212,894,175.29, 319,339,133.98 and 67,327,761.47 is: 100,990,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,894,175.29 : 319,339,133.98 = 67,327,761.47 : x
  2. Step 2: Convert to fraction form
    212,894,175.29/319,339,133.98 = 67,327,761.47/x
  3. Step 3: Cross multiply
    212,894,175.29x = 319,339,133.98 × 67,327,761.47
  4. Step 4: Simplify right side
    212,894,175.29x = 21,500,389,038,876,800
  5. Step 5: Solve for x
    x = 21,500,389,038,876,800/212,894,175.29
  6. Step 6: Final answer
    x = 100,990,968.92

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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.