Home / 11,776,450.40-17,636,331.27-7,978,418.72

Finding the Fourth Proportional to 11,776,450.40, 17,636,331.27 and 7,978,418.72

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Solution

The fourth proportional to 11,776,450.40, 17,636,331.27 and 7,978,418.72 is: 11,948,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776,450.40 : 17,636,331.27 = 7,978,418.72 : x
  2. Step 2: Convert to fraction form
    11,776,450.40/17,636,331.27 = 7,978,418.72/x
  3. Step 3: Cross multiply
    11,776,450.40x = 17,636,331.27 × 7,978,418.72
  4. Step 4: Simplify right side
    11,776,450.40x = 140,710,035,556,689.36
  5. Step 5: Solve for x
    x = 140,710,035,556,689.36/11,776,450.40
  6. Step 6: Final answer
    x = 11,948,425.10

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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.