Home / 7,739,385.80-11,609,078.70-1,982,108.30

Finding the Fourth Proportional to 7,739,385.80, 11,609,078.70 and 1,982,108.30

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Solution

The fourth proportional to 7,739,385.80, 11,609,078.70 and 1,982,108.30 is: 2,973,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739,385.80 : 11,609,078.70 = 1,982,108.30 : x
  2. Step 2: Convert to fraction form
    7,739,385.80/11,609,078.70 = 1,982,108.30/x
  3. Step 3: Cross multiply
    7,739,385.80x = 11,609,078.70 × 1,982,108.30
  4. Step 4: Simplify right side
    7,739,385.80x = 23,010,451,246,623.21
  5. Step 5: Solve for x
    x = 23,010,451,246,623.21/7,739,385.80
  6. Step 6: Final answer
    x = 2,973,162.45

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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.