Home / 20,340,331.45-28,069,863.39-11,048,082.98

Finding the Fourth Proportional to 20,340,331.45, 28,069,863.39 and 11,048,082.98

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Solution

The fourth proportional to 20,340,331.45, 28,069,863.39 and 11,048,082.98 is: 15,246,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340,331.45 : 28,069,863.39 = 11,048,082.98 : x
  2. Step 2: Convert to fraction form
    20,340,331.45/28,069,863.39 = 11,048,082.98/x
  3. Step 3: Cross multiply
    20,340,331.45x = 28,069,863.39 × 11,048,082.98
  4. Step 4: Simplify right side
    20,340,331.45x = 310,118,179,829,634.81
  5. Step 5: Solve for x
    x = 310,118,179,829,634.81/20,340,331.45
  6. Step 6: Final answer
    x = 15,246,466.39

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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.