Home / 15,139,486.39-20,892,224.65-8,612,976.75

Finding the Fourth Proportional to 15,139,486.39, 20,892,224.65 and 8,612,976.75

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Solution

The fourth proportional to 15,139,486.39, 20,892,224.65 and 8,612,976.75 is: 11,885,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139,486.39 : 20,892,224.65 = 8,612,976.75 : x
  2. Step 2: Convert to fraction form
    15,139,486.39/20,892,224.65 = 8,612,976.75/x
  3. Step 3: Cross multiply
    15,139,486.39x = 20,892,224.65 × 8,612,976.75
  4. Step 4: Simplify right side
    15,139,486.39x = 179,944,245,082,497.94
  5. Step 5: Solve for x
    x = 179,944,245,082,497.94/15,139,486.39
  6. Step 6: Final answer
    x = 11,885,756.26

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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.