Home / 20,478,452.60-30,722,260.68-7,699,068.04

Finding the Fourth Proportional to 20,478,452.60, 30,722,260.68 and 7,699,068.04

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Solution

The fourth proportional to 20,478,452.60, 30,722,260.68 and 7,699,068.04 is: 11,550,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,452.60 : 30,722,260.68 = 7,699,068.04 : x
  2. Step 2: Convert to fraction form
    20,478,452.60/30,722,260.68 = 7,699,068.04/x
  3. Step 3: Cross multiply
    20,478,452.60x = 30,722,260.68 × 7,699,068.04
  4. Step 4: Simplify right side
    20,478,452.60x = 236,532,775,317,936.66
  5. Step 5: Solve for x
    x = 236,532,775,317,936.66/20,478,452.60
  6. Step 6: Final answer
    x = 11,550,324.62

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1.5x scale

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.