Home / 14,304,431.80-21,456,647.70-12,456,854.20

Finding the Fourth Proportional to 14,304,431.80, 21,456,647.70 and 12,456,854.20

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Solution

The fourth proportional to 14,304,431.80, 21,456,647.70 and 12,456,854.20 is: 18,685,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304,431.80 : 21,456,647.70 = 12,456,854.20 : x
  2. Step 2: Convert to fraction form
    14,304,431.80/21,456,647.70 = 12,456,854.20/x
  3. Step 3: Cross multiply
    14,304,431.80x = 21,456,647.70 × 12,456,854.20
  4. Step 4: Simplify right side
    14,304,431.80x = 267,282,332,019,665.31
  5. Step 5: Solve for x
    x = 267,282,332,019,665.31/14,304,431.80
  6. Step 6: Final answer
    x = 18,685,281.30

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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.