Home / 21,194,833.20-31,796,769.60-12,101,287.20

Finding the Fourth Proportional to 21,194,833.20, 31,796,769.60 and 12,101,287.20

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Solution

The fourth proportional to 21,194,833.20, 31,796,769.60 and 12,101,287.20 is: 18,154,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194,833.20 : 31,796,769.60 = 12,101,287.20 : x
  2. Step 2: Convert to fraction form
    21,194,833.20/31,796,769.60 = 12,101,287.20/x
  3. Step 3: Cross multiply
    21,194,833.20x = 31,796,769.60 × 12,101,287.20
  4. Step 4: Simplify right side
    21,194,833.20x = 384,781,840,961,829.12
  5. Step 5: Solve for x
    x = 384,781,840,961,829.12/21,194,833.20
  6. Step 6: Final answer
    x = 18,154,511.40

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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.