Home / 721,226,177.73-1,081,563,489.54-393,526,537.56

Finding the Fourth Proportional to 721,226,177.73, 1,081,563,489.54 and 393,526,537.56

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Solution

The fourth proportional to 721,226,177.73, 1,081,563,489.54 and 393,526,537.56 is: 590,139,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,226,177.73 : 1,081,563,489.54 = 393,526,537.56 : x
  2. Step 2: Convert to fraction form
    721,226,177.73/1,081,563,489.54 = 393,526,537.56/x
  3. Step 3: Cross multiply
    721,226,177.73x = 1,081,563,489.54 × 393,526,537.56
  4. Step 4: Simplify right side
    721,226,177.73x = 425,623,935,189,987,456
  5. Step 5: Solve for x
    x = 425,623,935,189,987,456/721,226,177.73
  6. Step 6: Final answer
    x = 590,139,332.61

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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.