Home / 21,383,854.40-32,069,560.80-11,803,822.40

Finding the Fourth Proportional to 21,383,854.40, 32,069,560.80 and 11,803,822.40

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Solution

The fourth proportional to 21,383,854.40, 32,069,560.80 and 11,803,822.40 is: 17,702,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,854.40 : 32,069,560.80 = 11,803,822.40 : x
  2. Step 2: Convert to fraction form
    21,383,854.40/32,069,560.80 = 11,803,822.40/x
  3. Step 3: Cross multiply
    21,383,854.40x = 32,069,560.80 × 11,803,822.40
  4. Step 4: Simplify right side
    21,383,854.40x = 378,543,400,129,201.94
  5. Step 5: Solve for x
    x = 378,543,400,129,201.94/21,383,854.40
  6. Step 6: Final answer
    x = 17,702,299.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.