Home / 510,039,550.88-765,056,781.80-199,178,751.64

Finding the Fourth Proportional to 510,039,550.88, 765,056,781.80 and 199,178,751.64

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Solution

The fourth proportional to 510,039,550.88, 765,056,781.80 and 199,178,751.64 is: 298,767,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,039,550.88 : 765,056,781.80 = 199,178,751.64 : x
  2. Step 2: Convert to fraction form
    510,039,550.88/765,056,781.80 = 199,178,751.64/x
  3. Step 3: Cross multiply
    510,039,550.88x = 765,056,781.80 × 199,178,751.64
  4. Step 4: Simplify right side
    510,039,550.88x = 152,383,054,732,639,840
  5. Step 5: Solve for x
    x = 152,383,054,732,639,840/510,039,550.88
  6. Step 6: Final answer
    x = 298,767,133.78

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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.