Home / 388,272,072.61-582,490,004.81-125,936,249.76

Finding the Fourth Proportional to 388,272,072.61, 582,490,004.81 and 125,936,249.76

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Solution

The fourth proportional to 388,272,072.61, 582,490,004.81 and 125,936,249.76 is: 188,930,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,272,072.61 : 582,490,004.81 = 125,936,249.76 : x
  2. Step 2: Convert to fraction form
    388,272,072.61/582,490,004.81 = 125,936,249.76/x
  3. Step 3: Cross multiply
    388,272,072.61x = 582,490,004.81 × 125,936,249.76
  4. Step 4: Simplify right side
    388,272,072.61x = 73,356,606,728,140,928
  5. Step 5: Solve for x
    x = 73,356,606,728,140,928/388,272,072.61
  6. Step 6: Final answer
    x = 188,930,937.61

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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.