Home / 20,122,704.15-30,183,412.63-8,457,255.87

Finding the Fourth Proportional to 20,122,704.15, 30,183,412.63 and 8,457,255.87

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Solution

The fourth proportional to 20,122,704.15, 30,183,412.63 and 8,457,255.87 is: 12,685,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122,704.15 : 30,183,412.63 = 8,457,255.87 : x
  2. Step 2: Convert to fraction form
    20,122,704.15/30,183,412.63 = 8,457,255.87/x
  3. Step 3: Cross multiply
    20,122,704.15x = 30,183,412.63 × 8,457,255.87
  4. Step 4: Simplify right side
    20,122,704.15x = 255,268,843,641,699.59
  5. Step 5: Solve for x
    x = 255,268,843,641,699.59/20,122,704.15
  6. Step 6: Final answer
    x = 12,685,613.31

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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.