Home / 320,436,006.40-480,654,009.60-298,936,921.60

Finding the Fourth Proportional to 320,436,006.40, 480,654,009.60 and 298,936,921.60

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Solution

The fourth proportional to 320,436,006.40, 480,654,009.60 and 298,936,921.60 is: 448,405,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436,006.40 : 480,654,009.60 = 298,936,921.60 : x
  2. Step 2: Convert to fraction form
    320,436,006.40/480,654,009.60 = 298,936,921.60/x
  3. Step 3: Cross multiply
    320,436,006.40x = 480,654,009.60 × 298,936,921.60
  4. Step 4: Simplify right side
    320,436,006.40x = 143,685,229,984,520,864
  5. Step 5: Solve for x
    x = 143,685,229,984,520,864/320,436,006.40
  6. Step 6: Final answer
    x = 448,405,382.40

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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.