Home / 15,219,319.88-21,002,656.38-8,343,654.32

Finding the Fourth Proportional to 15,219,319.88, 21,002,656.38 and 8,343,654.32

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Solution

The fourth proportional to 15,219,319.88, 21,002,656.38 and 8,343,654.32 is: 11,514,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219,319.88 : 21,002,656.38 = 8,343,654.32 : x
  2. Step 2: Convert to fraction form
    15,219,319.88/21,002,656.38 = 8,343,654.32/x
  3. Step 3: Cross multiply
    15,219,319.88x = 21,002,656.38 × 8,343,654.32
  4. Step 4: Simplify right side
    15,219,319.88x = 175,238,904,636,462.56
  5. Step 5: Solve for x
    x = 175,238,904,636,462.56/15,219,319.88
  6. Step 6: Final answer
    x = 11,514,240.19

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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.