Home / 621,383,162.87-857,528,785.33-353,452,065.14

Finding the Fourth Proportional to 621,383,162.87, 857,528,785.33 and 353,452,065.14

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Solution

The fourth proportional to 621,383,162.87, 857,528,785.33 and 353,452,065.14 is: 487,775,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,383,162.87 : 857,528,785.33 = 353,452,065.14 : x
  2. Step 2: Convert to fraction form
    621,383,162.87/857,528,785.33 = 353,452,065.14/x
  3. Step 3: Cross multiply
    621,383,162.87x = 857,528,785.33 × 353,452,065.14
  4. Step 4: Simplify right side
    621,383,162.87x = 303,095,320,093,144,384
  5. Step 5: Solve for x
    x = 303,095,320,093,144,384/621,383,162.87
  6. Step 6: Final answer
    x = 487,775,237.89

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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.