Home / 7,877,103.78-11,816,025.09-3,828,765.90

Finding the Fourth Proportional to 7,877,103.78, 11,816,025.09 and 3,828,765.90

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Solution

The fourth proportional to 7,877,103.78, 11,816,025.09 and 3,828,765.90 is: 5,743,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877,103.78 : 11,816,025.09 = 3,828,765.90 : x
  2. Step 2: Convert to fraction form
    7,877,103.78/11,816,025.09 = 3,828,765.90/x
  3. Step 3: Cross multiply
    7,877,103.78x = 11,816,025.09 × 3,828,765.90
  4. Step 4: Simplify right side
    7,877,103.78x = 45,240,793,879,056.30
  5. Step 5: Solve for x
    x = 45,240,793,879,056.30/7,877,103.78
  6. Step 6: Final answer
    x = 5,743,328.41

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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.