Home / 416,385,999.20-623,823,171.60-339,291,624.80

Finding the Fourth Proportional to 416,385,999.20, 623,823,171.60 and 339,291,624.80

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Solution

The fourth proportional to 416,385,999.20, 623,823,171.60 and 339,291,624.80 is: 508,321,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,385,999.20 : 623,823,171.60 = 339,291,624.80 : x
  2. Step 2: Convert to fraction form
    416,385,999.20/623,823,171.60 = 339,291,624.80/x
  3. Step 3: Cross multiply
    416,385,999.20x = 623,823,171.60 × 339,291,624.80
  4. Step 4: Simplify right side
    416,385,999.20x = 211,657,977,480,053,216
  5. Step 5: Solve for x
    x = 211,657,977,480,053,216/416,385,999.20
  6. Step 6: Final answer
    x = 508,321,552.33

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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.