Home / 20,720,037.80-31,080,056.70-6,536,613.80

Finding the Fourth Proportional to 20,720,037.80, 31,080,056.70 and 6,536,613.80

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Solution

The fourth proportional to 20,720,037.80, 31,080,056.70 and 6,536,613.80 is: 9,804,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,720,037.80 : 31,080,056.70 = 6,536,613.80 : x
  2. Step 2: Convert to fraction form
    20,720,037.80/31,080,056.70 = 6,536,613.80/x
  3. Step 3: Cross multiply
    20,720,037.80x = 31,080,056.70 × 6,536,613.80
  4. Step 4: Simplify right side
    20,720,037.80x = 203,158,327,530,002.44
  5. Step 5: Solve for x
    x = 203,158,327,530,002.44/20,720,037.80
  6. Step 6: Final answer
    x = 9,804,920.70

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1.5x scale

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.