Home / 12,618,923.30-18,928,384.95-8,083,960.10

Finding the Fourth Proportional to 12,618,923.30, 18,928,384.95 and 8,083,960.10

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Solution

The fourth proportional to 12,618,923.30, 18,928,384.95 and 8,083,960.10 is: 12,125,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,923.30 : 18,928,384.95 = 8,083,960.10 : x
  2. Step 2: Convert to fraction form
    12,618,923.30/18,928,384.95 = 8,083,960.10/x
  3. Step 3: Cross multiply
    12,618,923.30x = 18,928,384.95 × 8,083,960.10
  4. Step 4: Simplify right side
    12,618,923.30x = 153,016,308,693,240.47
  5. Step 5: Solve for x
    x = 153,016,308,693,240.47/12,618,923.30
  6. Step 6: Final answer
    x = 12,125,940.15

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Double scale
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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.