Home / 21,689,193.26-29,931,392.09-11,899,459.55

Finding the Fourth Proportional to 21,689,193.26, 29,931,392.09 and 11,899,459.55

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Solution

The fourth proportional to 21,689,193.26, 29,931,392.09 and 11,899,459.55 is: 16,421,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689,193.26 : 29,931,392.09 = 11,899,459.55 : x
  2. Step 2: Convert to fraction form
    21,689,193.26/29,931,392.09 = 11,899,459.55/x
  3. Step 3: Cross multiply
    21,689,193.26x = 29,931,392.09 × 11,899,459.55
  4. Step 4: Simplify right side
    21,689,193.26x = 356,167,389,554,722.12
  5. Step 5: Solve for x
    x = 356,167,389,554,722.12/21,689,193.26
  6. Step 6: Final answer
    x = 16,421,421.73

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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.