Home / 12,555,911.60-18,847,864.20-6,887,207.60

Finding the Fourth Proportional to 12,555,911.60, 18,847,864.20 and 6,887,207.60

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Solution

The fourth proportional to 12,555,911.60, 18,847,864.20 and 6,887,207.60 is: 10,338,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555,911.60 : 18,847,864.20 = 6,887,207.60 : x
  2. Step 2: Convert to fraction form
    12,555,911.60/18,847,864.20 = 6,887,207.60/x
  3. Step 3: Cross multiply
    12,555,911.60x = 18,847,864.20 × 6,887,207.60
  4. Step 4: Simplify right side
    12,555,911.60x = 129,809,153,562,007.91
  5. Step 5: Solve for x
    x = 129,809,153,562,007.91/12,555,911.60
  6. Step 6: Final answer
    x = 10,338,488.97

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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.