Home / 57,681,789.90-79,600,863.63-31,220,139.21

Finding the Fourth Proportional to 57,681,789.90, 79,600,863.63 and 31,220,139.21

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Solution

The fourth proportional to 57,681,789.90, 79,600,863.63 and 31,220,139.21 is: 43,083,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,681,789.90 : 79,600,863.63 = 31,220,139.21 : x
  2. Step 2: Convert to fraction form
    57,681,789.90/79,600,863.63 = 31,220,139.21/x
  3. Step 3: Cross multiply
    57,681,789.90x = 79,600,863.63 × 31,220,139.21
  4. Step 4: Simplify right side
    57,681,789.90x = 2,485,150,043,764,826
  5. Step 5: Solve for x
    x = 2,485,150,043,764,826/57,681,789.90
  6. Step 6: Final answer
    x = 43,083,788.63

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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.