Home / 18,782,022.70-28,173,034.05-7,416,621.10

Finding the Fourth Proportional to 18,782,022.70, 28,173,034.05 and 7,416,621.10

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Solution

The fourth proportional to 18,782,022.70, 28,173,034.05 and 7,416,621.10 is: 11,124,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,022.70 : 28,173,034.05 = 7,416,621.10 : x
  2. Step 2: Convert to fraction form
    18,782,022.70/28,173,034.05 = 7,416,621.10/x
  3. Step 3: Cross multiply
    18,782,022.70x = 28,173,034.05 × 7,416,621.10
  4. Step 4: Simplify right side
    18,782,022.70x = 208,948,718,786,248.44
  5. Step 5: Solve for x
    x = 208,948,718,786,248.44/18,782,022.70
  6. Step 6: Final answer
    x = 11,124,931.65

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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.