Home / 20,466,741.72-30,699,690.96-6,820,879.08

Finding the Fourth Proportional to 20,466,741.72, 30,699,690.96 and 6,820,879.08

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Solution

The fourth proportional to 20,466,741.72, 30,699,690.96 and 6,820,879.08 is: 10,231,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,741.72 : 30,699,690.96 = 6,820,879.08 : x
  2. Step 2: Convert to fraction form
    20,466,741.72/30,699,690.96 = 6,820,879.08/x
  3. Step 3: Cross multiply
    20,466,741.72x = 30,699,690.96 × 6,820,879.08
  4. Step 4: Simplify right side
    20,466,741.72x = 209,398,879,831,529.12
  5. Step 5: Solve for x
    x = 209,398,879,831,529.12/20,466,741.72
  6. Step 6: Final answer
    x = 10,231,178.11

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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.