Home / 28,470,642.60-42,701,816.70-8,273,778.60

Finding the Fourth Proportional to 28,470,642.60, 42,701,816.70 and 8,273,778.60

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Solution

The fourth proportional to 28,470,642.60, 42,701,816.70 and 8,273,778.60 is: 12,409,462.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470,642.60 : 42,701,816.70 = 8,273,778.60 : x
  2. Step 2: Convert to fraction form
    28,470,642.60/42,701,816.70 = 8,273,778.60/x
  3. Step 3: Cross multiply
    28,470,642.60x = 42,701,816.70 × 8,273,778.60
  4. Step 4: Simplify right side
    28,470,642.60x = 353,305,377,193,582.62
  5. Step 5: Solve for x
    x = 353,305,377,193,582.62/28,470,642.60
  6. Step 6: Final answer
    x = 12,409,462.69

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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.