Home / 20,331,098.50-28,057,112.76-11,163,938.08

Finding the Fourth Proportional to 20,331,098.50, 28,057,112.76 and 11,163,938.08

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Solution

The fourth proportional to 20,331,098.50, 28,057,112.76 and 11,163,938.08 is: 15,406,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,098.50 : 28,057,112.76 = 11,163,938.08 : x
  2. Step 2: Convert to fraction form
    20,331,098.50/28,057,112.76 = 11,163,938.08/x
  3. Step 3: Cross multiply
    20,331,098.50x = 28,057,112.76 × 11,163,938.08
  4. Step 4: Simplify right side
    20,331,098.50x = 313,227,869,556,217.94
  5. Step 5: Solve for x
    x = 313,227,869,556,217.94/20,331,098.50
  6. Step 6: Final answer
    x = 15,406,342.63

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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.