Home / 13,469,349.72-18,588,111.30-7,358,171.88

Finding the Fourth Proportional to 13,469,349.72, 18,588,111.30 and 7,358,171.88

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Solution

The fourth proportional to 13,469,349.72, 18,588,111.30 and 7,358,171.88 is: 10,154,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469,349.72 : 18,588,111.30 = 7,358,171.88 : x
  2. Step 2: Convert to fraction form
    13,469,349.72/18,588,111.30 = 7,358,171.88/x
  3. Step 3: Cross multiply
    13,469,349.72x = 18,588,111.30 × 7,358,171.88
  4. Step 4: Simplify right side
    13,469,349.72x = 136,774,517,869,970.25
  5. Step 5: Solve for x
    x = 136,774,517,869,970.25/13,469,349.72
  6. Step 6: Final answer
    x = 10,154,500.46

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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.