Home / 15,685,939.28-21,647,246.98-8,716,590.80

Finding the Fourth Proportional to 15,685,939.28, 21,647,246.98 and 8,716,590.80

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Solution

The fourth proportional to 15,685,939.28, 21,647,246.98 and 8,716,590.80 is: 12,029,256.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,939.28 : 21,647,246.98 = 8,716,590.80 : x
  2. Step 2: Convert to fraction form
    15,685,939.28/21,647,246.98 = 8,716,590.80/x
  3. Step 3: Cross multiply
    15,685,939.28x = 21,647,246.98 × 8,716,590.80
  4. Step 4: Simplify right side
    15,685,939.28x = 188,690,193,871,195.81
  5. Step 5: Solve for x
    x = 188,690,193,871,195.81/15,685,939.28
  6. Step 6: Final answer
    x = 12,029,256.94

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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.