Home / 57,617,709.36-79,511,321.52-31,512,146.40

Finding the Fourth Proportional to 57,617,709.36, 79,511,321.52 and 31,512,146.40

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Solution

The fourth proportional to 57,617,709.36, 79,511,321.52 and 31,512,146.40 is: 43,486,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,617,709.36 : 79,511,321.52 = 31,512,146.40 : x
  2. Step 2: Convert to fraction form
    57,617,709.36/79,511,321.52 = 31,512,146.40/x
  3. Step 3: Cross multiply
    57,617,709.36x = 79,511,321.52 × 31,512,146.40
  4. Step 4: Simplify right side
    57,617,709.36x = 2,505,572,404,195,710.50
  5. Step 5: Solve for x
    x = 2,505,572,404,195,710.50/57,617,709.36
  6. Step 6: Final answer
    x = 43,486,150.91

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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.