Home / 21,762,237.50-30,031,887.78-11,972,472.20

Finding the Fourth Proportional to 21,762,237.50, 30,031,887.78 and 11,972,472.20

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Solution

The fourth proportional to 21,762,237.50, 30,031,887.78 and 11,972,472.20 is: 16,522,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,237.50 : 30,031,887.78 = 11,972,472.20 : x
  2. Step 2: Convert to fraction form
    21,762,237.50/30,031,887.78 = 11,972,472.20/x
  3. Step 3: Cross multiply
    21,762,237.50x = 30,031,887.78 × 11,972,472.20
  4. Step 4: Simplify right side
    21,762,237.50x = 359,555,941,559,569.69
  5. Step 5: Solve for x
    x = 359,555,941,559,569.69/21,762,237.50
  6. Step 6: Final answer
    x = 16,522,011.65

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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.