Home / 723,991,631.70-1,085,987,447.55-263,944,809.30

Finding the Fourth Proportional to 723,991,631.70, 1,085,987,447.55 and 263,944,809.30

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Solution

The fourth proportional to 723,991,631.70, 1,085,987,447.55 and 263,944,809.30 is: 395,917,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,991,631.70 : 1,085,987,447.55 = 263,944,809.30 : x
  2. Step 2: Convert to fraction form
    723,991,631.70/1,085,987,447.55 = 263,944,809.30/x
  3. Step 3: Cross multiply
    723,991,631.70x = 1,085,987,447.55 × 263,944,809.30
  4. Step 4: Simplify right side
    723,991,631.70x = 286,640,749,745,778,496
  5. Step 5: Solve for x
    x = 286,640,749,745,778,496/723,991,631.70
  6. Step 6: Final answer
    x = 395,917,213.95

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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.