Home / 387,072,032.80-580,608,049.20-378,114,080.80

Finding the Fourth Proportional to 387,072,032.80, 580,608,049.20 and 378,114,080.80

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Solution

The fourth proportional to 387,072,032.80, 580,608,049.20 and 378,114,080.80 is: 567,171,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,032.80 : 580,608,049.20 = 378,114,080.80 : x
  2. Step 2: Convert to fraction form
    387,072,032.80/580,608,049.20 = 378,114,080.80/x
  3. Step 3: Cross multiply
    387,072,032.80x = 580,608,049.20 × 378,114,080.80
  4. Step 4: Simplify right side
    387,072,032.80x = 219,536,078,828,339,200
  5. Step 5: Solve for x
    x = 219,536,078,828,339,200/387,072,032.80
  6. Step 6: Final answer
    x = 567,171,121.20

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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.