Home / 384,928,612.80-577,392,919.20-320,305,387.20

Finding the Fourth Proportional to 384,928,612.80, 577,392,919.20 and 320,305,387.20

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Solution

The fourth proportional to 384,928,612.80, 577,392,919.20 and 320,305,387.20 is: 480,458,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,928,612.80 : 577,392,919.20 = 320,305,387.20 : x
  2. Step 2: Convert to fraction form
    384,928,612.80/577,392,919.20 = 320,305,387.20/x
  3. Step 3: Cross multiply
    384,928,612.80x = 577,392,919.20 × 320,305,387.20
  4. Step 4: Simplify right side
    384,928,612.80x = 184,942,062,550,894,336
  5. Step 5: Solve for x
    x = 184,942,062,550,894,336/384,928,612.80
  6. Step 6: Final answer
    x = 480,458,080.80

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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.