Home / 20,331,506.43-28,033,771.23-15,165,899.91

Finding the Fourth Proportional to 20,331,506.43, 28,033,771.23 and 15,165,899.91

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Solution

The fourth proportional to 20,331,506.43, 28,033,771.23 and 15,165,899.91 is: 20,911,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,506.43 : 28,033,771.23 = 15,165,899.91 : x
  2. Step 2: Convert to fraction form
    20,331,506.43/28,033,771.23 = 15,165,899.91/x
  3. Step 3: Cross multiply
    20,331,506.43x = 28,033,771.23 × 15,165,899.91
  4. Step 4: Simplify right side
    20,331,506.43x = 425,157,368,574,017.62
  5. Step 5: Solve for x
    x = 425,157,368,574,017.62/20,331,506.43
  6. Step 6: Final answer
    x = 20,911,257.61

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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.