Home / 13,805,619.03-20,708,428.55-4,220,997.57

Finding the Fourth Proportional to 13,805,619.03, 20,708,428.55 and 4,220,997.57

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Solution

The fourth proportional to 13,805,619.03, 20,708,428.55 and 4,220,997.57 is: 6,331,496.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805,619.03 : 20,708,428.55 = 4,220,997.57 : x
  2. Step 2: Convert to fraction form
    13,805,619.03/20,708,428.55 = 4,220,997.57/x
  3. Step 3: Cross multiply
    13,805,619.03x = 20,708,428.55 × 4,220,997.57
  4. Step 4: Simplify right side
    13,805,619.03x = 87,410,226,566,963.66
  5. Step 5: Solve for x
    x = 87,410,226,566,963.66/13,805,619.03
  6. Step 6: Final answer
    x = 6,331,496.36

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Similar ratio
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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.