Home / 15,920,342.90-21,967,853.64-8,950,067.72

Finding the Fourth Proportional to 15,920,342.90, 21,967,853.64 and 8,950,067.72

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Solution

The fourth proportional to 15,920,342.90, 21,967,853.64 and 8,950,067.72 is: 12,349,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920,342.90 : 21,967,853.64 = 8,950,067.72 : x
  2. Step 2: Convert to fraction form
    15,920,342.90/21,967,853.64 = 8,950,067.72/x
  3. Step 3: Cross multiply
    15,920,342.90x = 21,967,853.64 × 8,950,067.72
  4. Step 4: Simplify right side
    15,920,342.90x = 196,613,777,741,048.53
  5. Step 5: Solve for x
    x = 196,613,777,741,048.53/15,920,342.90
  6. Step 6: Final answer
    x = 12,349,845.66

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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.