Home / 21,300,680.04-31,918,504.82-12,647,740.73

Finding the Fourth Proportional to 21,300,680.04, 31,918,504.82 and 12,647,740.73

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Solution

The fourth proportional to 21,300,680.04, 31,918,504.82 and 12,647,740.73 is: 18,952,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300,680.04 : 31,918,504.82 = 12,647,740.73 : x
  2. Step 2: Convert to fraction form
    21,300,680.04/31,918,504.82 = 12,647,740.73/x
  3. Step 3: Cross multiply
    21,300,680.04x = 31,918,504.82 × 12,647,740.73
  4. Step 4: Simplify right side
    21,300,680.04x = 403,696,973,409,325.69
  5. Step 5: Solve for x
    x = 403,696,973,409,325.69/21,300,680.04
  6. Step 6: Final answer
    x = 18,952,304.46

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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.