Home / 15,519,645.61-21,417,116.82-8,997,056.12

Finding the Fourth Proportional to 15,519,645.61, 21,417,116.82 and 8,997,056.12

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Solution

The fourth proportional to 15,519,645.61, 21,417,116.82 and 8,997,056.12 is: 12,415,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519,645.61 : 21,417,116.82 = 8,997,056.12 : x
  2. Step 2: Convert to fraction form
    15,519,645.61/21,417,116.82 = 8,997,056.12/x
  3. Step 3: Cross multiply
    15,519,645.61x = 21,417,116.82 × 8,997,056.12
  4. Step 4: Simplify right side
    15,519,645.61x = 192,691,001,958,135.94
  5. Step 5: Solve for x
    x = 192,691,001,958,135.94/15,519,645.61
  6. Step 6: Final answer
    x = 12,415,940.85

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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.