Home / 387,072,000.80-580,608,001.20-378,114,048.80

Finding the Fourth Proportional to 387,072,000.80, 580,608,001.20 and 378,114,048.80

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Solution

The fourth proportional to 387,072,000.80, 580,608,001.20 and 378,114,048.80 is: 567,171,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,000.80 : 580,608,001.20 = 378,114,048.80 : x
  2. Step 2: Convert to fraction form
    387,072,000.80/580,608,001.20 = 378,114,048.80/x
  3. Step 3: Cross multiply
    387,072,000.80x = 580,608,001.20 × 378,114,048.80
  4. Step 4: Simplify right side
    387,072,000.80x = 219,536,042,099,407,296
  5. Step 5: Solve for x
    x = 219,536,042,099,407,296/387,072,000.80
  6. Step 6: Final answer
    x = 567,171,073.20

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1.5x scale

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.