Home / 21,284,058.20-31,926,087.30-12,774,003.80

Finding the Fourth Proportional to 21,284,058.20, 31,926,087.30 and 12,774,003.80

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Solution

The fourth proportional to 21,284,058.20, 31,926,087.30 and 12,774,003.80 is: 19,161,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,058.20 : 31,926,087.30 = 12,774,003.80 : x
  2. Step 2: Convert to fraction form
    21,284,058.20/31,926,087.30 = 12,774,003.80/x
  3. Step 3: Cross multiply
    21,284,058.20x = 31,926,087.30 × 12,774,003.80
  4. Step 4: Simplify right side
    21,284,058.20x = 407,823,960,489,331.75
  5. Step 5: Solve for x
    x = 407,823,960,489,331.75/21,284,058.20
  6. Step 6: Final answer
    x = 19,161,005.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.