Home / 21,762,236.50-30,031,886.40-11,972,471.20

Finding the Fourth Proportional to 21,762,236.50, 30,031,886.40 and 11,972,471.20

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Solution

The fourth proportional to 21,762,236.50, 30,031,886.40 and 11,972,471.20 is: 16,522,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,236.50 : 30,031,886.40 = 11,972,471.20 : x
  2. Step 2: Convert to fraction form
    21,762,236.50/30,031,886.40 = 11,972,471.20/x
  3. Step 3: Cross multiply
    21,762,236.50x = 30,031,886.40 × 11,972,471.20
  4. Step 4: Simplify right side
    21,762,236.50x = 359,555,895,005,671.62
  5. Step 5: Solve for x
    x = 359,555,895,005,671.62/21,762,236.50
  6. Step 6: Final answer
    x = 16,522,010.27

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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.