Home / 12,928,283.40-19,392,425.10-12,739,326.60

Finding the Fourth Proportional to 12,928,283.40, 19,392,425.10 and 12,739,326.60

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Solution

The fourth proportional to 12,928,283.40, 19,392,425.10 and 12,739,326.60 is: 19,108,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,283.40 : 19,392,425.10 = 12,739,326.60 : x
  2. Step 2: Convert to fraction form
    12,928,283.40/19,392,425.10 = 12,739,326.60/x
  3. Step 3: Cross multiply
    12,928,283.40x = 19,392,425.10 × 12,739,326.60
  4. Step 4: Simplify right side
    12,928,283.40x = 247,046,436,914,937.66
  5. Step 5: Solve for x
    x = 247,046,436,914,937.66/12,928,283.40
  6. Step 6: Final answer
    x = 19,108,989.90

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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.