Home / 212,802,351.93-319,217,013.72-89,957,774.61

Finding the Fourth Proportional to 212,802,351.93, 319,217,013.72 and 89,957,774.61

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Solution

The fourth proportional to 212,802,351.93, 319,217,013.72 and 89,957,774.61 is: 134,942,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,802,351.93 : 319,217,013.72 = 89,957,774.61 : x
  2. Step 2: Convert to fraction form
    212,802,351.93/319,217,013.72 = 89,957,774.61/x
  3. Step 3: Cross multiply
    212,802,351.93x = 319,217,013.72 × 89,957,774.61
  4. Step 4: Simplify right side
    212,802,351.93x = 28,716,052,171,901,040
  5. Step 5: Solve for x
    x = 28,716,052,171,901,040/212,802,351.93
  6. Step 6: Final answer
    x = 134,942,362.77

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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.