Home / 15,347,200.96-21,179,638.59-8,378,250.10

Finding the Fourth Proportional to 15,347,200.96, 21,179,638.59 and 8,378,250.10

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Solution

The fourth proportional to 15,347,200.96, 21,179,638.59 and 8,378,250.10 is: 11,562,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347,200.96 : 21,179,638.59 = 8,378,250.10 : x
  2. Step 2: Convert to fraction form
    15,347,200.96/21,179,638.59 = 8,378,250.10/x
  3. Step 3: Cross multiply
    15,347,200.96x = 21,179,638.59 × 8,378,250.10
  4. Step 4: Simplify right side
    15,347,200.96x = 177,448,309,134,631.34
  5. Step 5: Solve for x
    x = 177,448,309,134,631.34/15,347,200.96
  6. Step 6: Final answer
    x = 11,562,258.79

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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.