Home / 258,691,482.48-388,037,240.60-206,632,344.81

Finding the Fourth Proportional to 258,691,482.48, 388,037,240.60 and 206,632,344.81

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Solution

The fourth proportional to 258,691,482.48, 388,037,240.60 and 206,632,344.81 is: 309,948,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,691,482.48 : 388,037,240.60 = 206,632,344.81 : x
  2. Step 2: Convert to fraction form
    258,691,482.48/388,037,240.60 = 206,632,344.81/x
  3. Step 3: Cross multiply
    258,691,482.48x = 388,037,240.60 × 206,632,344.81
  4. Step 4: Simplify right side
    258,691,482.48x = 80,181,044,897,746,976
  5. Step 5: Solve for x
    x = 80,181,044,897,746,976/258,691,482.48
  6. Step 6: Final answer
    x = 309,948,530.69

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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.