Home / 723,991,631.20-1,085,987,446.80-263,944,808.80

Finding the Fourth Proportional to 723,991,631.20, 1,085,987,446.80 and 263,944,808.80

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Solution

The fourth proportional to 723,991,631.20, 1,085,987,446.80 and 263,944,808.80 is: 395,917,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,991,631.20 : 1,085,987,446.80 = 263,944,808.80 : x
  2. Step 2: Convert to fraction form
    723,991,631.20/1,085,987,446.80 = 263,944,808.80/x
  3. Step 3: Cross multiply
    723,991,631.20x = 1,085,987,446.80 × 263,944,808.80
  4. Step 4: Simplify right side
    723,991,631.20x = 286,640,749,004,826,176
  5. Step 5: Solve for x
    x = 286,640,749,004,826,176/723,991,631.20
  6. Step 6: Final answer
    x = 395,917,213.20

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1.5x scale

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.