Home / 57,135,285.39-78,847,156.77-31,029,989.92

Finding the Fourth Proportional to 57,135,285.39, 78,847,156.77 and 31,029,989.92

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Solution

The fourth proportional to 57,135,285.39, 78,847,156.77 and 31,029,989.92 is: 42,821,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135,285.39 : 78,847,156.77 = 31,029,989.92 : x
  2. Step 2: Convert to fraction form
    57,135,285.39/78,847,156.77 = 31,029,989.92/x
  3. Step 3: Cross multiply
    57,135,285.39x = 78,847,156.77 × 31,029,989.92
  4. Step 4: Simplify right side
    57,135,285.39x = 2,446,626,479,793,760
  5. Step 5: Solve for x
    x = 2,446,626,479,793,760/57,135,285.39
  6. Step 6: Final answer
    x = 42,821,637.51

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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.