Home / 21,320,108.63-29,421,749.93-11,530,552.77

Finding the Fourth Proportional to 21,320,108.63, 29,421,749.93 and 11,530,552.77

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Solution

The fourth proportional to 21,320,108.63, 29,421,749.93 and 11,530,552.77 is: 15,912,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,108.63 : 29,421,749.93 = 11,530,552.77 : x
  2. Step 2: Convert to fraction form
    21,320,108.63/29,421,749.93 = 11,530,552.77/x
  3. Step 3: Cross multiply
    21,320,108.63x = 29,421,749.93 × 11,530,552.77
  4. Step 4: Simplify right side
    21,320,108.63x = 339,249,040,153,608.81
  5. Step 5: Solve for x
    x = 339,249,040,153,608.81/21,320,108.63
  6. Step 6: Final answer
    x = 15,912,162.83

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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.