Home / 13,386,821.28-18,473,955.84-7,275,249.60

Finding the Fourth Proportional to 13,386,821.28, 18,473,955.84 and 7,275,249.60

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Solution

The fourth proportional to 13,386,821.28, 18,473,955.84 and 7,275,249.60 is: 10,039,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386,821.28 : 18,473,955.84 = 7,275,249.60 : x
  2. Step 2: Convert to fraction form
    13,386,821.28/18,473,955.84 = 7,275,249.60/x
  3. Step 3: Cross multiply
    13,386,821.28x = 18,473,955.84 × 7,275,249.60
  4. Step 4: Simplify right side
    13,386,821.28x = 134,402,639,835,377.66
  5. Step 5: Solve for x
    x = 134,402,639,835,377.66/13,386,821.28
  6. Step 6: Final answer
    x = 10,039,921.88

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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.