Home / 20,392,289.91-28,142,102.70-11,099,411.01

Finding the Fourth Proportional to 20,392,289.91, 28,142,102.70 and 11,099,411.01

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Solution

The fourth proportional to 20,392,289.91, 28,142,102.70 and 11,099,411.01 is: 15,317,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,289.91 : 28,142,102.70 = 11,099,411.01 : x
  2. Step 2: Convert to fraction form
    20,392,289.91/28,142,102.70 = 11,099,411.01/x
  3. Step 3: Cross multiply
    20,392,289.91x = 28,142,102.70 × 11,099,411.01
  4. Step 4: Simplify right side
    20,392,289.91x = 312,360,764,552,930.69
  5. Step 5: Solve for x
    x = 312,360,764,552,930.69/20,392,289.91
  6. Step 6: Final answer
    x = 15,317,591.40

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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.