Home / 13,423,615.80-20,127,183.18-5,216,675.40

Finding the Fourth Proportional to 13,423,615.80, 20,127,183.18 and 5,216,675.40

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Solution

The fourth proportional to 13,423,615.80, 20,127,183.18 and 5,216,675.40 is: 7,821,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423,615.80 : 20,127,183.18 = 5,216,675.40 : x
  2. Step 2: Convert to fraction form
    13,423,615.80/20,127,183.18 = 5,216,675.40/x
  3. Step 3: Cross multiply
    13,423,615.80x = 20,127,183.18 × 5,216,675.40
  4. Step 4: Simplify right side
    13,423,615.80x = 104,996,981,366,399.78
  5. Step 5: Solve for x
    x = 104,996,981,366,399.78/13,423,615.80
  6. Step 6: Final answer
    x = 7,821,810.68

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1.5x scale

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.