Home / 21,073,078.11-29,085,526.11-12,811,384.89

Finding the Fourth Proportional to 21,073,078.11, 29,085,526.11 and 12,811,384.89

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Solution

The fourth proportional to 21,073,078.11, 29,085,526.11 and 12,811,384.89 is: 17,682,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073,078.11 : 29,085,526.11 = 12,811,384.89 : x
  2. Step 2: Convert to fraction form
    21,073,078.11/29,085,526.11 = 12,811,384.89/x
  3. Step 3: Cross multiply
    21,073,078.11x = 29,085,526.11 × 12,811,384.89
  4. Step 4: Simplify right side
    21,073,078.11x = 372,625,869,723,354.50
  5. Step 5: Solve for x
    x = 372,625,869,723,354.50/21,073,078.11
  6. Step 6: Final answer
    x = 17,682,555.33

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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.