Home / 412,345,060.41-618,517,765.58-121,212,203.61

Finding the Fourth Proportional to 412,345,060.41, 618,517,765.58 and 121,212,203.61

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Solution

The fourth proportional to 412,345,060.41, 618,517,765.58 and 121,212,203.61 is: 181,818,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,345,060.41 : 618,517,765.58 = 121,212,203.61 : x
  2. Step 2: Convert to fraction form
    412,345,060.41/618,517,765.58 = 121,212,203.61/x
  3. Step 3: Cross multiply
    412,345,060.41x = 618,517,765.58 × 121,212,203.61
  4. Step 4: Simplify right side
    412,345,060.41x = 74,971,901,337,279,152
  5. Step 5: Solve for x
    x = 74,971,901,337,279,152/412,345,060.41
  6. Step 6: Final answer
    x = 181,818,356.85

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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.