Home / 57,135,288.20-78,847,160.64-31,029,992.72

Finding the Fourth Proportional to 57,135,288.20, 78,847,160.64 and 31,029,992.72

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Solution

The fourth proportional to 57,135,288.20, 78,847,160.64 and 31,029,992.72 is: 42,821,641.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135,288.20 : 78,847,160.64 = 31,029,992.72 : x
  2. Step 2: Convert to fraction form
    57,135,288.20/78,847,160.64 = 31,029,992.72/x
  3. Step 3: Cross multiply
    57,135,288.20x = 78,847,160.64 × 31,029,992.72
  4. Step 4: Simplify right side
    57,135,288.20x = 2,446,626,820,651,870.50
  5. Step 5: Solve for x
    x = 2,446,626,820,651,870.50/57,135,288.20
  6. Step 6: Final answer
    x = 42,821,641.37

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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.