Home / 20,466,739.47-30,699,687.65-6,820,876.83

Finding the Fourth Proportional to 20,466,739.47, 30,699,687.65 and 6,820,876.83

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Solution

The fourth proportional to 20,466,739.47, 30,699,687.65 and 6,820,876.83 is: 10,231,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,739.47 : 30,699,687.65 = 6,820,876.83 : x
  2. Step 2: Convert to fraction form
    20,466,739.47/30,699,687.65 = 6,820,876.83/x
  3. Step 3: Cross multiply
    20,466,739.47x = 30,699,687.65 × 6,820,876.83
  4. Step 4: Simplify right side
    20,466,739.47x = 209,398,788,146,017.75
  5. Step 5: Solve for x
    x = 209,398,788,146,017.75/20,466,739.47
  6. Step 6: Final answer
    x = 10,231,174.75

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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.