Home / 15,179,082.94-20,947,071.79-8,209,768.22

Finding the Fourth Proportional to 15,179,082.94, 20,947,071.79 and 8,209,768.22

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Solution

The fourth proportional to 15,179,082.94, 20,947,071.79 and 8,209,768.22 is: 11,329,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179,082.94 : 20,947,071.79 = 8,209,768.22 : x
  2. Step 2: Convert to fraction form
    15,179,082.94/20,947,071.79 = 8,209,768.22/x
  3. Step 3: Cross multiply
    15,179,082.94x = 20,947,071.79 × 8,209,768.22
  4. Step 4: Simplify right side
    15,179,082.94x = 171,970,604,283,600.50
  5. Step 5: Solve for x
    x = 171,970,604,283,600.50/15,179,082.94
  6. Step 6: Final answer
    x = 11,329,446.25

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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.