Home / 21,345,329.52-29,456,518.32-11,555,769.96

Finding the Fourth Proportional to 21,345,329.52, 29,456,518.32 and 11,555,769.96

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Solution

The fourth proportional to 21,345,329.52, 29,456,518.32 and 11,555,769.96 is: 15,946,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345,329.52 : 29,456,518.32 = 11,555,769.96 : x
  2. Step 2: Convert to fraction form
    21,345,329.52/29,456,518.32 = 11,555,769.96/x
  3. Step 3: Cross multiply
    21,345,329.52x = 29,456,518.32 × 11,555,769.96
  4. Step 4: Simplify right side
    21,345,329.52x = 340,392,749,528,445.69
  5. Step 5: Solve for x
    x = 340,392,749,528,445.69/21,345,329.52
  6. Step 6: Final answer
    x = 15,946,942.83

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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.