Home / 510,042,720.72-765,061,513.06-199,181,903.58

Finding the Fourth Proportional to 510,042,720.72, 765,061,513.06 and 199,181,903.58

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Solution

The fourth proportional to 510,042,720.72, 765,061,513.06 and 199,181,903.58 is: 298,771,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,042,720.72 : 765,061,513.06 = 199,181,903.58 : x
  2. Step 2: Convert to fraction form
    510,042,720.72/765,061,513.06 = 199,181,903.58/x
  3. Step 3: Cross multiply
    510,042,720.72x = 765,061,513.06 × 199,181,903.58
  4. Step 4: Simplify right side
    510,042,720.72x = 152,386,408,527,085,824
  5. Step 5: Solve for x
    x = 152,386,408,527,085,824/510,042,720.72
  6. Step 6: Final answer
    x = 298,771,852.51

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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.