Home / 605,428,998.30-908,143,497.45-329,212,538.55

Finding the Fourth Proportional to 605,428,998.30, 908,143,497.45 and 329,212,538.55

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Solution

The fourth proportional to 605,428,998.30, 908,143,497.45 and 329,212,538.55 is: 493,818,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,428,998.30 : 908,143,497.45 = 329,212,538.55 : x
  2. Step 2: Convert to fraction form
    605,428,998.30/908,143,497.45 = 329,212,538.55/x
  3. Step 3: Cross multiply
    605,428,998.30x = 908,143,497.45 × 329,212,538.55
  4. Step 4: Simplify right side
    605,428,998.30x = 298,972,226,163,189,952
  5. Step 5: Solve for x
    x = 298,972,226,163,189,952/605,428,998.30
  6. Step 6: Final answer
    x = 493,818,807.83

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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.