Home / 20,051,661.87-30,081,359.70-8,536,918.25

Finding the Fourth Proportional to 20,051,661.87, 30,081,359.70 and 8,536,918.25

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Solution

The fourth proportional to 20,051,661.87, 30,081,359.70 and 8,536,918.25 is: 12,807,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051,661.87 : 30,081,359.70 = 8,536,918.25 : x
  2. Step 2: Convert to fraction form
    20,051,661.87/30,081,359.70 = 8,536,918.25/x
  3. Step 3: Cross multiply
    20,051,661.87x = 30,081,359.70 × 8,536,918.25
  4. Step 4: Simplify right side
    20,051,661.87x = 256,802,108,457,337.69
  5. Step 5: Solve for x
    x = 256,802,108,457,337.69/20,051,661.87
  6. Step 6: Final answer
    x = 12,807,023.68

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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.