Home / 13,310,111.28-18,367,953.57-7,198,539.78

Finding the Fourth Proportional to 13,310,111.28, 18,367,953.57 and 7,198,539.78

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Solution

The fourth proportional to 13,310,111.28, 18,367,953.57 and 7,198,539.78 is: 9,933,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,111.28 : 18,367,953.57 = 7,198,539.78 : x
  2. Step 2: Convert to fraction form
    13,310,111.28/18,367,953.57 = 7,198,539.78/x
  3. Step 3: Cross multiply
    13,310,111.28x = 18,367,953.57 × 7,198,539.78
  4. Step 4: Simplify right side
    13,310,111.28x = 132,222,444,450,838.02
  5. Step 5: Solve for x
    x = 132,222,444,450,838.02/13,310,111.28
  6. Step 6: Final answer
    x = 9,933,984.90

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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.