Home / 18,987,316.38-28,480,974.66-4,610,287.40

Finding the Fourth Proportional to 18,987,316.38, 28,480,974.66 and 4,610,287.40

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Solution

The fourth proportional to 18,987,316.38, 28,480,974.66 and 4,610,287.40 is: 6,915,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987,316.38 : 28,480,974.66 = 4,610,287.40 : x
  2. Step 2: Convert to fraction form
    18,987,316.38/28,480,974.66 = 4,610,287.40/x
  3. Step 3: Cross multiply
    18,987,316.38x = 28,480,974.66 × 4,610,287.40
  4. Step 4: Simplify right side
    18,987,316.38x = 131,305,478,472,312.41
  5. Step 5: Solve for x
    x = 131,305,478,472,312.41/18,987,316.38
  6. Step 6: Final answer
    x = 6,915,431.11

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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.