Home / 10,202,142.56-15,305,342.52-5,408,530.16

Finding the Fourth Proportional to 10,202,142.56, 15,305,342.52 and 5,408,530.16

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Solution

The fourth proportional to 10,202,142.56, 15,305,342.52 and 5,408,530.16 is: 8,113,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202,142.56 : 15,305,342.52 = 5,408,530.16 : x
  2. Step 2: Convert to fraction form
    10,202,142.56/15,305,342.52 = 5,408,530.16/x
  3. Step 3: Cross multiply
    10,202,142.56x = 15,305,342.52 × 5,408,530.16
  4. Step 4: Simplify right side
    10,202,142.56x = 82,779,406,628,550.41
  5. Step 5: Solve for x
    x = 82,779,406,628,550.41/10,202,142.56
  6. Step 6: Final answer
    x = 8,113,923.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.