Home / 20,108,580.24-30,124,812.78-11,886,607.20

Finding the Fourth Proportional to 20,108,580.24, 30,124,812.78 and 11,886,607.20

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Solution

The fourth proportional to 20,108,580.24, 30,124,812.78 and 11,886,607.20 is: 17,807,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,580.24 : 30,124,812.78 = 11,886,607.20 : x
  2. Step 2: Convert to fraction form
    20,108,580.24/30,124,812.78 = 11,886,607.20/x
  3. Step 3: Cross multiply
    20,108,580.24x = 30,124,812.78 × 11,886,607.20
  4. Step 4: Simplify right side
    20,108,580.24x = 358,081,816,489,400
  5. Step 5: Solve for x
    x = 358,081,816,489,400/20,108,580.24
  6. Step 6: Final answer
    x = 17,807,414.16

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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.