Home / 56,512,990.20-84,769,485.30-20,162,425.80

Finding the Fourth Proportional to 56,512,990.20, 84,769,485.30 and 20,162,425.80

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Solution

The fourth proportional to 56,512,990.20, 84,769,485.30 and 20,162,425.80 is: 30,243,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,512,990.20 : 84,769,485.30 = 20,162,425.80 : x
  2. Step 2: Convert to fraction form
    56,512,990.20/84,769,485.30 = 20,162,425.80/x
  3. Step 3: Cross multiply
    56,512,990.20x = 84,769,485.30 × 20,162,425.80
  4. Step 4: Simplify right side
    56,512,990.20x = 1,709,158,457,465,440.75
  5. Step 5: Solve for x
    x = 1,709,158,457,465,440.75/56,512,990.20
  6. Step 6: Final answer
    x = 30,243,638.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.