Home / 510,042,721.22-765,061,513.81-199,181,904.08

Finding the Fourth Proportional to 510,042,721.22, 765,061,513.81 and 199,181,904.08

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Solution

The fourth proportional to 510,042,721.22, 765,061,513.81 and 199,181,904.08 is: 298,771,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,042,721.22 : 765,061,513.81 = 199,181,904.08 : x
  2. Step 2: Convert to fraction form
    510,042,721.22/765,061,513.81 = 199,181,904.08/x
  3. Step 3: Cross multiply
    510,042,721.22x = 765,061,513.81 × 199,181,904.08
  4. Step 4: Simplify right side
    510,042,721.22x = 152,386,409,059,003,008
  5. Step 5: Solve for x
    x = 152,386,409,059,003,008/510,042,721.22
  6. Step 6: Final answer
    x = 298,771,853.26

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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.