Home / 20,803,596.45-28,711,388.04-12,102,135.81

Finding the Fourth Proportional to 20,803,596.45, 28,711,388.04 and 12,102,135.81

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Solution

The fourth proportional to 20,803,596.45, 28,711,388.04 and 12,102,135.81 is: 16,702,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,596.45 : 28,711,388.04 = 12,102,135.81 : x
  2. Step 2: Convert to fraction form
    20,803,596.45/28,711,388.04 = 12,102,135.81/x
  3. Step 3: Cross multiply
    20,803,596.45x = 28,711,388.04 × 12,102,135.81
  4. Step 4: Simplify right side
    20,803,596.45x = 347,469,117,353,689.69
  5. Step 5: Solve for x
    x = 347,469,117,353,689.69/20,803,596.45
  6. Step 6: Final answer
    x = 16,702,358.08

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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.