Home / 21,290,913-29,381,459.94-11,633,121

Finding the Fourth Proportional to 21,290,913, 29,381,459.94 and 11,633,121

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Solution

The fourth proportional to 21,290,913, 29,381,459.94 and 11,633,121 is: 16,053,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,913 : 29,381,459.94 = 11,633,121 : x
  2. Step 2: Convert to fraction form
    21,290,913/29,381,459.94 = 11,633,121/x
  3. Step 3: Cross multiply
    21,290,913x = 29,381,459.94 × 11,633,121
  4. Step 4: Simplify right side
    21,290,913x = 341,798,078,638,672.75
  5. Step 5: Solve for x
    x = 341,798,078,638,672.75/21,290,913
  6. Step 6: Final answer
    x = 16,053,706.98

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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.