Home / 12,928,728.96-17,843,261.04-7,423,826.40

Finding the Fourth Proportional to 12,928,728.96, 17,843,261.04 and 7,423,826.40

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Solution

The fourth proportional to 12,928,728.96, 17,843,261.04 and 7,423,826.40 is: 10,245,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,728.96 : 17,843,261.04 = 7,423,826.40 : x
  2. Step 2: Convert to fraction form
    12,928,728.96/17,843,261.04 = 7,423,826.40/x
  3. Step 3: Cross multiply
    12,928,728.96x = 17,843,261.04 × 7,423,826.40
  4. Step 4: Simplify right side
    12,928,728.96x = 132,465,272,370,843.45
  5. Step 5: Solve for x
    x = 132,465,272,370,843.45/12,928,728.96
  6. Step 6: Final answer
    x = 10,245,807.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.