Home / 728,698,481,383.05-1,005,635,514,730.90-403,537,773,195.25

Finding the Fourth Proportional to 728,698,481,383.05, 1,005,635,514,730.90 and 403,537,773,195.25

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Solution

The fourth proportional to 728,698,481,383.05, 1,005,635,514,730.90 and 403,537,773,195.25 is: 556,899,632,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,481,383.05 : 1,005,635,514,730.90 = 403,537,773,195.25 : x
  2. Step 2: Convert to fraction form
    728,698,481,383.05/1,005,635,514,730.90 = 403,537,773,195.25/x
  3. Step 3: Cross multiply
    728,698,481,383.05x = 1,005,635,514,730.90 × 403,537,773,195.25
  4. Step 4: Simplify right side
    728,698,481,383.05x = 405,811,916,260,566,418,587,648
  5. Step 5: Solve for x
    x = 405,811,916,260,566,418,587,648/728,698,481,383.05
  6. Step 6: Final answer
    x = 556,899,632,191.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.