Home / 510,039,546.89-765,056,775.80-199,178,747.64

Finding the Fourth Proportional to 510,039,546.89, 765,056,775.80 and 199,178,747.64

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Solution

The fourth proportional to 510,039,546.89, 765,056,775.80 and 199,178,747.64 is: 298,767,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,039,546.89 : 765,056,775.80 = 199,178,747.64 : x
  2. Step 2: Convert to fraction form
    510,039,546.89/765,056,775.80 = 199,178,747.64/x
  3. Step 3: Cross multiply
    510,039,546.89x = 765,056,775.80 × 199,178,747.64
  4. Step 4: Simplify right side
    510,039,546.89x = 152,383,050,476,344,352
  5. Step 5: Solve for x
    x = 152,383,050,476,344,352/510,039,546.89
  6. Step 6: Final answer
    x = 298,767,127.78

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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.