Home / 21,290,690.27-29,382,017.38-11,998,651.98

Finding the Fourth Proportional to 21,290,690.27, 29,382,017.38 and 11,998,651.98

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Solution

The fourth proportional to 21,290,690.27, 29,382,017.38 and 11,998,651.98 is: 16,558,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,690.27 : 29,382,017.38 = 11,998,651.98 : x
  2. Step 2: Convert to fraction form
    21,290,690.27/29,382,017.38 = 11,998,651.98/x
  3. Step 3: Cross multiply
    21,290,690.27x = 29,382,017.38 × 11,998,651.98
  4. Step 4: Simplify right side
    21,290,690.27x = 352,544,600,913,318.88
  5. Step 5: Solve for x
    x = 352,544,600,913,318.88/21,290,690.27
  6. Step 6: Final answer
    x = 16,558,627.10

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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.