Home / 20,909,512.68-31,353,499.87-9,385,100.35

Finding the Fourth Proportional to 20,909,512.68, 31,353,499.87 and 9,385,100.35

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Solution

The fourth proportional to 20,909,512.68, 31,353,499.87 and 9,385,100.35 is: 14,072,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,512.68 : 31,353,499.87 = 9,385,100.35 : x
  2. Step 2: Convert to fraction form
    20,909,512.68/31,353,499.87 = 9,385,100.35/x
  3. Step 3: Cross multiply
    20,909,512.68x = 31,353,499.87 × 9,385,100.35
  4. Step 4: Simplify right side
    20,909,512.68x = 294,255,742,501,815.44
  5. Step 5: Solve for x
    x = 294,255,742,501,815.44/20,909,512.68
  6. Step 6: Final answer
    x = 14,072,816.86

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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.