Home / 654,151,805.76-981,664,062.48-339,308,005.20

Finding the Fourth Proportional to 654,151,805.76, 981,664,062.48 and 339,308,005.20

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Solution

The fourth proportional to 654,151,805.76, 981,664,062.48 and 339,308,005.20 is: 509,188,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,151,805.76 : 981,664,062.48 = 339,308,005.20 : x
  2. Step 2: Convert to fraction form
    654,151,805.76/981,664,062.48 = 339,308,005.20/x
  3. Step 3: Cross multiply
    654,151,805.76x = 981,664,062.48 × 339,308,005.20
  4. Step 4: Simplify right side
    654,151,805.76x = 333,086,474,816,616,960
  5. Step 5: Solve for x
    x = 333,086,474,816,616,960/654,151,805.76
  6. Step 6: Final answer
    x = 509,188,344.18

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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.