Home / 315,561,879.36-435,467,040.05-176,333,785.20

Finding the Fourth Proportional to 315,561,879.36, 435,467,040.05 and 176,333,785.20

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Solution

The fourth proportional to 315,561,879.36, 435,467,040.05 and 176,333,785.20 is: 243,335,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,561,879.36 : 435,467,040.05 = 176,333,785.20 : x
  2. Step 2: Convert to fraction form
    315,561,879.36/435,467,040.05 = 176,333,785.20/x
  3. Step 3: Cross multiply
    315,561,879.36x = 435,467,040.05 × 176,333,785.20
  4. Step 4: Simplify right side
    315,561,879.36x = 76,787,551,500,974,832
  5. Step 5: Solve for x
    x = 76,787,551,500,974,832/315,561,879.36
  6. Step 6: Final answer
    x = 243,335,955.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.