Home / 20,340,331.08-28,069,862.87-11,048,082.60

Finding the Fourth Proportional to 20,340,331.08, 28,069,862.87 and 11,048,082.60

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Solution

The fourth proportional to 20,340,331.08, 28,069,862.87 and 11,048,082.60 is: 15,246,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340,331.08 : 28,069,862.87 = 11,048,082.60 : x
  2. Step 2: Convert to fraction form
    20,340,331.08/28,069,862.87 = 11,048,082.60/x
  3. Step 3: Cross multiply
    20,340,331.08x = 28,069,862.87 × 11,048,082.60
  4. Step 4: Simplify right side
    20,340,331.08x = 310,118,163,533,422.25
  5. Step 5: Solve for x
    x = 310,118,163,533,422.25/20,340,331.08
  6. Step 6: Final answer
    x = 15,246,465.87

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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.