Home / 21,704,299.95-29,950,833.96-12,884,128.23

Finding the Fourth Proportional to 21,704,299.95, 29,950,833.96 and 12,884,128.23

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Solution

The fourth proportional to 21,704,299.95, 29,950,833.96 and 12,884,128.23 is: 17,779,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704,299.95 : 29,950,833.96 = 12,884,128.23 : x
  2. Step 2: Convert to fraction form
    21,704,299.95/29,950,833.96 = 12,884,128.23/x
  3. Step 3: Cross multiply
    21,704,299.95x = 29,950,833.96 × 12,884,128.23
  4. Step 4: Simplify right side
    21,704,299.95x = 385,890,385,336,078.69
  5. Step 5: Solve for x
    x = 385,890,385,336,078.69/21,704,299.95
  6. Step 6: Final answer
    x = 17,779,443.99

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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.