Home / 21,137,490.74-29,171,536.18-11,971,764.02

Finding the Fourth Proportional to 21,137,490.74, 29,171,536.18 and 11,971,764.02

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Solution

The fourth proportional to 21,137,490.74, 29,171,536.18 and 11,971,764.02 is: 16,522,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,490.74 : 29,171,536.18 = 11,971,764.02 : x
  2. Step 2: Convert to fraction form
    21,137,490.74/29,171,536.18 = 11,971,764.02/x
  3. Step 3: Cross multiply
    21,137,490.74x = 29,171,536.18 × 11,971,764.02
  4. Step 4: Simplify right side
    21,137,490.74x = 349,234,747,072,065.12
  5. Step 5: Solve for x
    x = 349,234,747,072,065.12/21,137,490.74
  6. Step 6: Final answer
    x = 16,522,053.23

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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.