Home / 438,710,563.68-658,065,805.57-193,067,198.43

Finding the Fourth Proportional to 438,710,563.68, 658,065,805.57 and 193,067,198.43

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Solution

The fourth proportional to 438,710,563.68, 658,065,805.57 and 193,067,198.43 is: 289,600,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,710,563.68 : 658,065,805.57 = 193,067,198.43 : x
  2. Step 2: Convert to fraction form
    438,710,563.68/658,065,805.57 = 193,067,198.43/x
  3. Step 3: Cross multiply
    438,710,563.68x = 658,065,805.57 × 193,067,198.43
  4. Step 4: Simplify right side
    438,710,563.68x = 127,050,921,463,981,008
  5. Step 5: Solve for x
    x = 127,050,921,463,981,008/438,710,563.68
  6. Step 6: Final answer
    x = 289,600,780.06

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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.