Home / 20,551,446.76-30,831,498.78-7,771,668.52

Finding the Fourth Proportional to 20,551,446.76, 30,831,498.78 and 7,771,668.52

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Solution

The fourth proportional to 20,551,446.76, 30,831,498.78 and 7,771,668.52 is: 11,659,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,446.76 : 30,831,498.78 = 7,771,668.52 : x
  2. Step 2: Convert to fraction form
    20,551,446.76/30,831,498.78 = 7,771,668.52/x
  3. Step 3: Cross multiply
    20,551,446.76x = 30,831,498.78 × 7,771,668.52
  4. Step 4: Simplify right side
    20,551,446.76x = 239,612,188,492,944.41
  5. Step 5: Solve for x
    x = 239,612,188,492,944.41/20,551,446.76
  6. Step 6: Final answer
    x = 11,659,139.68

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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.