Home / 20,630,629,989.92-28,470,098,243.20-11,598,428,356.79

Finding the Fourth Proportional to 20,630,629,989.92, 28,470,098,243.20 and 11,598,428,356.79

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Solution

The fourth proportional to 20,630,629,989.92, 28,470,098,243.20 and 11,598,428,356.79 is: 16,005,734,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,629,989.92 : 28,470,098,243.20 = 11,598,428,356.79 : x
  2. Step 2: Convert to fraction form
    20,630,629,989.92/28,470,098,243.20 = 11,598,428,356.79/x
  3. Step 3: Cross multiply
    20,630,629,989.92x = 28,470,098,243.20 × 11,598,428,356.79
  4. Step 4: Simplify right side
    20,630,629,989.92x = 330,208,394,784,481,673,216
  5. Step 5: Solve for x
    x = 330,208,394,784,481,673,216/20,630,629,989.92
  6. Step 6: Final answer
    x = 16,005,734,916.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.