Home / 388,053,010.67-582,171,264.32-125,737,128.41

Finding the Fourth Proportional to 388,053,010.67, 582,171,264.32 and 125,737,128.41

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Solution

The fourth proportional to 388,053,010.67, 582,171,264.32 and 125,737,128.41 is: 188,635,420.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,053,010.67 : 582,171,264.32 = 125,737,128.41 : x
  2. Step 2: Convert to fraction form
    388,053,010.67/582,171,264.32 = 125,737,128.41/x
  3. Step 3: Cross multiply
    388,053,010.67x = 582,171,264.32 × 125,737,128.41
  4. Step 4: Simplify right side
    388,053,010.67x = 73,200,543,014,876,352
  5. Step 5: Solve for x
    x = 73,200,543,014,876,352/388,053,010.67
  6. Step 6: Final answer
    x = 188,635,420.94

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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.