Home / 15,323,814.78-21,147,011.19-8,448,543.42

Finding the Fourth Proportional to 15,323,814.78, 21,147,011.19 and 8,448,543.42

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Solution

The fourth proportional to 15,323,814.78, 21,147,011.19 and 8,448,543.42 is: 11,659,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323,814.78 : 21,147,011.19 = 8,448,543.42 : x
  2. Step 2: Convert to fraction form
    15,323,814.78/21,147,011.19 = 8,448,543.42/x
  3. Step 3: Cross multiply
    15,323,814.78x = 21,147,011.19 × 8,448,543.42
  4. Step 4: Simplify right side
    15,323,814.78x = 178,661,442,241,940.88
  5. Step 5: Solve for x
    x = 178,661,442,241,940.88/15,323,814.78
  6. Step 6: Final answer
    x = 11,659,070.85

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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.