Home / 21,225,974.67-31,851,304.79-8,929,036.62

Finding the Fourth Proportional to 21,225,974.67, 31,851,304.79 and 8,929,036.62

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Solution

The fourth proportional to 21,225,974.67, 31,851,304.79 and 8,929,036.62 is: 13,398,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225,974.67 : 31,851,304.79 = 8,929,036.62 : x
  2. Step 2: Convert to fraction form
    21,225,974.67/31,851,304.79 = 8,929,036.62/x
  3. Step 3: Cross multiply
    21,225,974.67x = 31,851,304.79 × 8,929,036.62
  4. Step 4: Simplify right side
    21,225,974.67x = 284,401,466,820,046.19
  5. Step 5: Solve for x
    x = 284,401,466,820,046.19/21,225,974.67
  6. Step 6: Final answer
    x = 13,398,747.11

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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.