Home / 13,995,430.20-19,313,001.12-7,800,987.12

Finding the Fourth Proportional to 13,995,430.20, 19,313,001.12 and 7,800,987.12

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Solution

The fourth proportional to 13,995,430.20, 19,313,001.12 and 7,800,987.12 is: 10,764,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995,430.20 : 19,313,001.12 = 7,800,987.12 : x
  2. Step 2: Convert to fraction form
    13,995,430.20/19,313,001.12 = 7,800,987.12/x
  3. Step 3: Cross multiply
    13,995,430.20x = 19,313,001.12 × 7,800,987.12
  4. Step 4: Simplify right side
    13,995,430.20x = 150,660,472,985,665.59
  5. Step 5: Solve for x
    x = 150,660,472,985,665.59/13,995,430.20
  6. Step 6: Final answer
    x = 10,764,976.20

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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.