Home / 21,020,034.52-29,008,364.34-12,198,806.92

Finding the Fourth Proportional to 21,020,034.52, 29,008,364.34 and 12,198,806.92

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Solution

The fourth proportional to 21,020,034.52, 29,008,364.34 and 12,198,806.92 is: 16,834,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,034.52 : 29,008,364.34 = 12,198,806.92 : x
  2. Step 2: Convert to fraction form
    21,020,034.52/29,008,364.34 = 12,198,806.92/x
  3. Step 3: Cross multiply
    21,020,034.52x = 29,008,364.34 × 12,198,806.92
  4. Step 4: Simplify right side
    21,020,034.52x = 353,867,435,648,673.25
  5. Step 5: Solve for x
    x = 353,867,435,648,673.25/21,020,034.52
  6. Step 6: Final answer
    x = 16,834,769.48

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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.