Home / 81,154,540.53-121,444,455.74-50,463,572.49

Finding the Fourth Proportional to 81,154,540.53, 121,444,455.74 and 50,463,572.49

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Solution

The fourth proportional to 81,154,540.53, 121,444,455.74 and 50,463,572.49 is: 75,516,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,154,540.53 : 121,444,455.74 = 50,463,572.49 : x
  2. Step 2: Convert to fraction form
    81,154,540.53/121,444,455.74 = 50,463,572.49/x
  3. Step 3: Cross multiply
    81,154,540.53x = 121,444,455.74 × 50,463,572.49
  4. Step 4: Simplify right side
    81,154,540.53x = 6,128,521,095,491,769
  5. Step 5: Solve for x
    x = 6,128,521,095,491,769/81,154,540.53
  6. Step 6: Final answer
    x = 75,516,675.41

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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.