Home / 12,618,925.30-18,928,387.95-8,083,962.10

Finding the Fourth Proportional to 12,618,925.30, 18,928,387.95 and 8,083,962.10

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Solution

The fourth proportional to 12,618,925.30, 18,928,387.95 and 8,083,962.10 is: 12,125,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,925.30 : 18,928,387.95 = 8,083,962.10 : x
  2. Step 2: Convert to fraction form
    12,618,925.30/18,928,387.95 = 8,083,962.10/x
  3. Step 3: Cross multiply
    12,618,925.30x = 18,928,387.95 × 8,083,962.10
  4. Step 4: Simplify right side
    12,618,925.30x = 153,016,370,801,896.69
  5. Step 5: Solve for x
    x = 153,016,370,801,896.69/12,618,925.30
  6. Step 6: Final answer
    x = 12,125,943.15

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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.