Home / 20,373,279-28,119,118.86-11,677,281

Finding the Fourth Proportional to 20,373,279, 28,119,118.86 and 11,677,281

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Solution

The fourth proportional to 20,373,279, 28,119,118.86 and 11,677,281 is: 16,116,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,279 : 28,119,118.86 = 11,677,281 : x
  2. Step 2: Convert to fraction form
    20,373,279/28,119,118.86 = 11,677,281/x
  3. Step 3: Cross multiply
    20,373,279x = 28,119,118.86 × 11,677,281
  4. Step 4: Simplify right side
    20,373,279x = 328,354,852,400,619.62
  5. Step 5: Solve for x
    x = 328,354,852,400,619.62/20,373,279
  6. Step 6: Final answer
    x = 16,116,936.92

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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.