Home / 12,786,316.98-17,645,377.50-6,985,474.44

Finding the Fourth Proportional to 12,786,316.98, 17,645,377.50 and 6,985,474.44

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Solution

The fourth proportional to 12,786,316.98, 17,645,377.50 and 6,985,474.44 is: 9,640,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,316.98 : 17,645,377.50 = 6,985,474.44 : x
  2. Step 2: Convert to fraction form
    12,786,316.98/17,645,377.50 = 6,985,474.44/x
  3. Step 3: Cross multiply
    12,786,316.98x = 17,645,377.50 × 6,985,474.44
  4. Step 4: Simplify right side
    12,786,316.98x = 123,261,333,510,401.11
  5. Step 5: Solve for x
    x = 123,261,333,510,401.11/12,786,316.98
  6. Step 6: Final answer
    x = 9,640,096.81

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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.