Home / 21,320,172.48-29,421,838.06-11,530,616.66

Finding the Fourth Proportional to 21,320,172.48, 29,421,838.06 and 11,530,616.66

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Solution

The fourth proportional to 21,320,172.48, 29,421,838.06 and 11,530,616.66 is: 15,912,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,172.48 : 29,421,838.06 = 11,530,616.66 : x
  2. Step 2: Convert to fraction form
    21,320,172.48/29,421,838.06 = 11,530,616.66/x
  3. Step 3: Cross multiply
    21,320,172.48x = 29,421,838.06 × 11,530,616.66
  4. Step 4: Simplify right side
    21,320,172.48x = 339,251,936,267,211.81
  5. Step 5: Solve for x
    x = 339,251,936,267,211.81/21,320,172.48
  6. Step 6: Final answer
    x = 15,912,251.02

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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.