Home / 18,782,023.70-28,173,035.55-7,416,622.10

Finding the Fourth Proportional to 18,782,023.70, 28,173,035.55 and 7,416,622.10

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Solution

The fourth proportional to 18,782,023.70, 28,173,035.55 and 7,416,622.10 is: 11,124,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,023.70 : 28,173,035.55 = 7,416,622.10 : x
  2. Step 2: Convert to fraction form
    18,782,023.70/28,173,035.55 = 7,416,622.10/x
  3. Step 3: Cross multiply
    18,782,023.70x = 28,173,035.55 × 7,416,622.10
  4. Step 4: Simplify right side
    18,782,023.70x = 208,948,758,084,215.66
  5. Step 5: Solve for x
    x = 208,948,758,084,215.66/18,782,023.70
  6. Step 6: Final answer
    x = 11,124,933.15

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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.