Home / 728,263,083,393.18-1,004,981,237,148.10-403,115,702,860.62

Finding the Fourth Proportional to 728,263,083,393.18, 1,004,981,237,148.10 and 403,115,702,860.62

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Solution

The fourth proportional to 728,263,083,393.18, 1,004,981,237,148.10 and 403,115,702,860.62 is: 556,287,593,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,263,083,393.18 : 1,004,981,237,148.10 = 403,115,702,860.62 : x
  2. Step 2: Convert to fraction form
    728,263,083,393.18/1,004,981,237,148.10 = 403,115,702,860.62/x
  3. Step 3: Cross multiply
    728,263,083,393.18x = 1,004,981,237,148.10 × 403,115,702,860.62
  4. Step 4: Simplify right side
    728,263,083,393.18x = 405,123,717,774,691,771,875,328
  5. Step 5: Solve for x
    x = 405,123,717,774,691,771,875,328/728,263,083,393.18
  6. Step 6: Final answer
    x = 556,287,593,059.24

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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.