Home / 20,768,215.59-28,661,771.95-11,827,703.11

Finding the Fourth Proportional to 20,768,215.59, 28,661,771.95 and 11,827,703.11

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Solution

The fourth proportional to 20,768,215.59, 28,661,771.95 and 11,827,703.11 is: 16,323,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768,215.59 : 28,661,771.95 = 11,827,703.11 : x
  2. Step 2: Convert to fraction form
    20,768,215.59/28,661,771.95 = 11,827,703.11/x
  3. Step 3: Cross multiply
    20,768,215.59x = 28,661,771.95 × 11,827,703.11
  4. Step 4: Simplify right side
    20,768,215.59x = 339,002,929,231,125.75
  5. Step 5: Solve for x
    x = 339,002,929,231,125.75/20,768,215.59
  6. Step 6: Final answer
    x = 16,323,161.12

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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.