Home / 7,887,913.20-11,828,370.60-3,629,386.80

Finding the Fourth Proportional to 7,887,913.20, 11,828,370.60 and 3,629,386.80

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Solution

The fourth proportional to 7,887,913.20, 11,828,370.60 and 3,629,386.80 is: 5,442,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887,913.20 : 11,828,370.60 = 3,629,386.80 : x
  2. Step 2: Convert to fraction form
    7,887,913.20/11,828,370.60 = 3,629,386.80/x
  3. Step 3: Cross multiply
    7,887,913.20x = 11,828,370.60 × 3,629,386.80
  4. Step 4: Simplify right side
    7,887,913.20x = 42,929,732,121,148.08
  5. Step 5: Solve for x
    x = 42,929,732,121,148.08/7,887,913.20
  6. Step 6: Final answer
    x = 5,442,470.15

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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.