Home / 7,872,990.10-11,809,480.29-6,078,493.42

Finding the Fourth Proportional to 7,872,990.10, 11,809,480.29 and 6,078,493.42

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Solution

The fourth proportional to 7,872,990.10, 11,809,480.29 and 6,078,493.42 is: 9,117,736.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,990.10 : 11,809,480.29 = 6,078,493.42 : x
  2. Step 2: Convert to fraction form
    7,872,990.10/11,809,480.29 = 6,078,493.42/x
  3. Step 3: Cross multiply
    7,872,990.10x = 11,809,480.29 × 6,078,493.42
  4. Step 4: Simplify right side
    7,872,990.10x = 71,783,848,236,384.69
  5. Step 5: Solve for x
    x = 71,783,848,236,384.69/7,872,990.10
  6. Step 6: Final answer
    x = 9,117,736.38

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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.