Home / 10,531,930.80-15,797,896.20-7,340,660.40

Finding the Fourth Proportional to 10,531,930.80, 15,797,896.20 and 7,340,660.40

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Solution

The fourth proportional to 10,531,930.80, 15,797,896.20 and 7,340,660.40 is: 11,010,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,930.80 : 15,797,896.20 = 7,340,660.40 : x
  2. Step 2: Convert to fraction form
    10,531,930.80/15,797,896.20 = 7,340,660.40/x
  3. Step 3: Cross multiply
    10,531,930.80x = 15,797,896.20 × 7,340,660.40
  4. Step 4: Simplify right side
    10,531,930.80x = 115,966,991,038,650.48
  5. Step 5: Solve for x
    x = 115,966,991,038,650.48/10,531,930.80
  6. Step 6: Final answer
    x = 11,010,990.60

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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.