Home / 13,023,039.20-17,970,308.52-7,220,354.72

Finding the Fourth Proportional to 13,023,039.20, 17,970,308.52 and 7,220,354.72

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Solution

The fourth proportional to 13,023,039.20, 17,970,308.52 and 7,220,354.72 is: 9,963,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023,039.20 : 17,970,308.52 = 7,220,354.72 : x
  2. Step 2: Convert to fraction form
    13,023,039.20/17,970,308.52 = 7,220,354.72/x
  3. Step 3: Cross multiply
    13,023,039.20x = 17,970,308.52 × 7,220,354.72
  4. Step 4: Simplify right side
    13,023,039.20x = 129,752,001,942,238.20
  5. Step 5: Solve for x
    x = 129,752,001,942,238.20/13,023,039.20
  6. Step 6: Final answer
    x = 9,963,265.87

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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.