Home / 20,414,800.89-28,172,409.75-11,247,443.64

Finding the Fourth Proportional to 20,414,800.89, 28,172,409.75 and 11,247,443.64

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Solution

The fourth proportional to 20,414,800.89, 28,172,409.75 and 11,247,443.64 is: 15,521,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,800.89 : 28,172,409.75 = 11,247,443.64 : x
  2. Step 2: Convert to fraction form
    20,414,800.89/28,172,409.75 = 11,247,443.64/x
  3. Step 3: Cross multiply
    20,414,800.89x = 28,172,409.75 × 11,247,443.64
  4. Step 4: Simplify right side
    20,414,800.89x = 316,867,590,866,111.50
  5. Step 5: Solve for x
    x = 316,867,590,866,111.50/20,414,800.89
  6. Step 6: Final answer
    x = 15,521,463.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.