Home / 20,620,323.10-28,456,337.32-11,328,751.94

Finding the Fourth Proportional to 20,620,323.10, 28,456,337.32 and 11,328,751.94

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Solution

The fourth proportional to 20,620,323.10, 28,456,337.32 and 11,328,751.94 is: 15,633,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,323.10 : 28,456,337.32 = 11,328,751.94 : x
  2. Step 2: Convert to fraction form
    20,620,323.10/28,456,337.32 = 11,328,751.94/x
  3. Step 3: Cross multiply
    20,620,323.10x = 28,456,337.32 × 11,328,751.94
  4. Step 4: Simplify right side
    20,620,323.10x = 322,374,786,619,244.38
  5. Step 5: Solve for x
    x = 322,374,786,619,244.38/20,620,323.10
  6. Step 6: Final answer
    x = 15,633,837.79

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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.