Home / 15,406,555.05-21,283,192.49-12,305,006.55

Finding the Fourth Proportional to 15,406,555.05, 21,283,192.49 and 12,305,006.55

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Solution

The fourth proportional to 15,406,555.05, 21,283,192.49 and 12,305,006.55 is: 16,998,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,555.05 : 21,283,192.49 = 12,305,006.55 : x
  2. Step 2: Convert to fraction form
    15,406,555.05/21,283,192.49 = 12,305,006.55/x
  3. Step 3: Cross multiply
    15,406,555.05x = 21,283,192.49 × 12,305,006.55
  4. Step 4: Simplify right side
    15,406,555.05x = 261,889,822,932,835.78
  5. Step 5: Solve for x
    x = 261,889,822,932,835.78/15,406,555.05
  6. Step 6: Final answer
    x = 16,998,597.16

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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.