Home / 21,762,078.76-30,031,668.24-11,972,312.76

Finding the Fourth Proportional to 21,762,078.76, 30,031,668.24 and 11,972,312.76

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Solution

The fourth proportional to 21,762,078.76, 30,031,668.24 and 11,972,312.76 is: 16,521,791.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,078.76 : 30,031,668.24 = 11,972,312.76 : x
  2. Step 2: Convert to fraction form
    21,762,078.76/30,031,668.24 = 11,972,312.76/x
  3. Step 3: Cross multiply
    21,762,078.76x = 30,031,668.24 × 11,972,312.76
  4. Step 4: Simplify right side
    21,762,078.76x = 359,548,524,873,838.69
  5. Step 5: Solve for x
    x = 359,548,524,873,838.69/21,762,078.76
  6. Step 6: Final answer
    x = 16,521,791.36

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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.