Home / 57,415,220.72-79,234,917.36-31,311,162.80

Finding the Fourth Proportional to 57,415,220.72, 79,234,917.36 and 31,311,162.80

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Solution

The fourth proportional to 57,415,220.72, 79,234,917.36 and 31,311,162.80 is: 43,210,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,415,220.72 : 79,234,917.36 = 31,311,162.80 : x
  2. Step 2: Convert to fraction form
    57,415,220.72/79,234,917.36 = 31,311,162.80/x
  3. Step 3: Cross multiply
    57,415,220.72x = 79,234,917.36 × 31,311,162.80
  4. Step 4: Simplify right side
    57,415,220.72x = 2,480,937,396,903,506
  5. Step 5: Solve for x
    x = 2,480,937,396,903,506/57,415,220.72
  6. Step 6: Final answer
    x = 43,210,447.78

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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.