Home / 21,643,528.50-29,869,008.21-11,985,736.50

Finding the Fourth Proportional to 21,643,528.50, 29,869,008.21 and 11,985,736.50

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Solution

The fourth proportional to 21,643,528.50, 29,869,008.21 and 11,985,736.50 is: 16,540,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,528.50 : 29,869,008.21 = 11,985,736.50 : x
  2. Step 2: Convert to fraction form
    21,643,528.50/29,869,008.21 = 11,985,736.50/x
  3. Step 3: Cross multiply
    21,643,528.50x = 29,869,008.21 × 11,985,736.50
  4. Step 4: Simplify right side
    21,643,528.50x = 358,002,061,921,396.69
  5. Step 5: Solve for x
    x = 358,002,061,921,396.69/21,643,528.50
  6. Step 6: Final answer
    x = 16,540,836.30

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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.