Home / 21,205,037.42-29,262,183.27-12,958,895.42

Finding the Fourth Proportional to 21,205,037.42, 29,262,183.27 and 12,958,895.42

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Solution

The fourth proportional to 21,205,037.42, 29,262,183.27 and 12,958,895.42 is: 17,882,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,037.42 : 29,262,183.27 = 12,958,895.42 : x
  2. Step 2: Convert to fraction form
    21,205,037.42/29,262,183.27 = 12,958,895.42/x
  3. Step 3: Cross multiply
    21,205,037.42x = 29,262,183.27 × 12,958,895.42
  4. Step 4: Simplify right side
    21,205,037.42x = 379,205,572,756,803.62
  5. Step 5: Solve for x
    x = 379,205,572,756,803.62/21,205,037.42
  6. Step 6: Final answer
    x = 17,882,806.11

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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.