Home / 20,760,347.69-28,648,724.76-11,467,717.76

Finding the Fourth Proportional to 20,760,347.69, 28,648,724.76 and 11,467,717.76

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Solution

The fourth proportional to 20,760,347.69, 28,648,724.76 and 11,467,717.76 is: 15,825,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,347.69 : 28,648,724.76 = 11,467,717.76 : x
  2. Step 2: Convert to fraction form
    20,760,347.69/28,648,724.76 = 11,467,717.76/x
  3. Step 3: Cross multiply
    20,760,347.69x = 28,648,724.76 × 11,467,717.76
  4. Step 4: Simplify right side
    20,760,347.69x = 328,535,489,803,225.56
  5. Step 5: Solve for x
    x = 328,535,489,803,225.56/20,760,347.69
  6. Step 6: Final answer
    x = 15,825,143.91

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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.