Home / 538,921,719.90-808,382,579.85-504,909,495.90

Finding the Fourth Proportional to 538,921,719.90, 808,382,579.85 and 504,909,495.90

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Solution

The fourth proportional to 538,921,719.90, 808,382,579.85 and 504,909,495.90 is: 757,364,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,921,719.90 : 808,382,579.85 = 504,909,495.90 : x
  2. Step 2: Convert to fraction form
    538,921,719.90/808,382,579.85 = 504,909,495.90/x
  3. Step 3: Cross multiply
    538,921,719.90x = 808,382,579.85 × 504,909,495.90
  4. Step 4: Simplify right side
    538,921,719.90x = 408,160,040,886,404,992
  5. Step 5: Solve for x
    x = 408,160,040,886,404,992/538,921,719.90
  6. Step 6: Final answer
    x = 757,364,243.85

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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.