Home / 10,129,267.28-13,978,429.80-5,546,015.12

Finding the Fourth Proportional to 10,129,267.28, 13,978,429.80 and 5,546,015.12

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Solution

The fourth proportional to 10,129,267.28, 13,978,429.80 and 5,546,015.12 is: 7,653,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,267.28 : 13,978,429.80 = 5,546,015.12 : x
  2. Step 2: Convert to fraction form
    10,129,267.28/13,978,429.80 = 5,546,015.12/x
  3. Step 3: Cross multiply
    10,129,267.28x = 13,978,429.80 × 5,546,015.12
  4. Step 4: Simplify right side
    10,129,267.28x = 77,524,583,024,658.58
  5. Step 5: Solve for x
    x = 77,524,583,024,658.58/10,129,267.28
  6. Step 6: Final answer
    x = 7,653,523.29

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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.