Home / 20,512,187.70-30,768,281.55-9,895,355.70

Finding the Fourth Proportional to 20,512,187.70, 30,768,281.55 and 9,895,355.70

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Solution

The fourth proportional to 20,512,187.70, 30,768,281.55 and 9,895,355.70 is: 14,843,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,187.70 : 30,768,281.55 = 9,895,355.70 : x
  2. Step 2: Convert to fraction form
    20,512,187.70/30,768,281.55 = 9,895,355.70/x
  3. Step 3: Cross multiply
    20,512,187.70x = 30,768,281.55 × 9,895,355.70
  4. Step 4: Simplify right side
    20,512,187.70x = 304,463,090,214,997.31
  5. Step 5: Solve for x
    x = 304,463,090,214,997.31/20,512,187.70
  6. Step 6: Final answer
    x = 14,843,033.55

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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.