Home / 728,263,083,387.15-1,004,981,237,139.80-403,115,702,854.60

Finding the Fourth Proportional to 728,263,083,387.15, 1,004,981,237,139.80 and 403,115,702,854.60

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Solution

The fourth proportional to 728,263,083,387.15, 1,004,981,237,139.80 and 403,115,702,854.60 is: 556,287,593,050.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,263,083,387.15 : 1,004,981,237,139.80 = 403,115,702,854.60 : x
  2. Step 2: Convert to fraction form
    728,263,083,387.15/1,004,981,237,139.80 = 403,115,702,854.60/x
  3. Step 3: Cross multiply
    728,263,083,387.15x = 1,004,981,237,139.80 × 403,115,702,854.60
  4. Step 4: Simplify right side
    728,263,083,387.15x = 405,123,717,765,295,926,935,552
  5. Step 5: Solve for x
    x = 405,123,717,765,295,926,935,552/728,263,083,387.15
  6. Step 6: Final answer
    x = 556,287,593,050.94

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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.