Home / 13,321,510.20-18,383,683.68-7,209,938.88

Finding the Fourth Proportional to 13,321,510.20, 18,383,683.68 and 7,209,938.88

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Solution

The fourth proportional to 13,321,510.20, 18,383,683.68 and 7,209,938.88 is: 9,949,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,510.20 : 18,383,683.68 = 7,209,938.88 : x
  2. Step 2: Convert to fraction form
    13,321,510.20/18,383,683.68 = 7,209,938.88/x
  3. Step 3: Cross multiply
    13,321,510.20x = 18,383,683.68 × 7,209,938.88
  4. Step 4: Simplify right side
    13,321,510.20x = 132,545,235,722,053.47
  5. Step 5: Solve for x
    x = 132,545,235,722,053.47/13,321,510.20
  6. Step 6: Final answer
    x = 9,949,715.44

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1.5x scale

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.