Home / 12,618,480.35-18,920,139.59-4,932,971.42

Finding the Fourth Proportional to 12,618,480.35, 18,920,139.59 and 4,932,971.42

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Solution

The fourth proportional to 12,618,480.35, 18,920,139.59 and 4,932,971.42 is: 7,396,493.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,480.35 : 18,920,139.59 = 4,932,971.42 : x
  2. Step 2: Convert to fraction form
    12,618,480.35/18,920,139.59 = 4,932,971.42/x
  3. Step 3: Cross multiply
    12,618,480.35x = 18,920,139.59 × 4,932,971.42
  4. Step 4: Simplify right side
    12,618,480.35x = 93,332,507,740,614.97
  5. Step 5: Solve for x
    x = 93,332,507,740,614.97/12,618,480.35
  6. Step 6: Final answer
    x = 7,396,493.49

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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.