Home / 212,821,808.94-319,375,918.17-74,648,665.26

Finding the Fourth Proportional to 212,821,808.94, 319,375,918.17 and 74,648,665.26

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Solution

The fourth proportional to 212,821,808.94, 319,375,918.17 and 74,648,665.26 is: 112,023,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,821,808.94 : 319,375,918.17 = 74,648,665.26 : x
  2. Step 2: Convert to fraction form
    212,821,808.94/319,375,918.17 = 74,648,665.26/x
  3. Step 3: Cross multiply
    212,821,808.94x = 319,375,918.17 × 74,648,665.26
  4. Step 4: Simplify right side
    212,821,808.94x = 23,840,986,007,577,484
  5. Step 5: Solve for x
    x = 23,840,986,007,577,484/212,821,808.94
  6. Step 6: Final answer
    x = 112,023,227.91

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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.