Home / 10,221,125.25-15,338,505.91-5,301,690.87

Finding the Fourth Proportional to 10,221,125.25, 15,338,505.91 and 5,301,690.87

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Solution

The fourth proportional to 10,221,125.25, 15,338,505.91 and 5,301,690.87 is: 7,956,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221,125.25 : 15,338,505.91 = 5,301,690.87 : x
  2. Step 2: Convert to fraction form
    10,221,125.25/15,338,505.91 = 5,301,690.87/x
  3. Step 3: Cross multiply
    10,221,125.25x = 15,338,505.91 × 5,301,690.87
  4. Step 4: Simplify right side
    10,221,125.25x = 81,320,016,742,488.05
  5. Step 5: Solve for x
    x = 81,320,016,742,488.05/10,221,125.25
  6. Step 6: Final answer
    x = 7,956,072.82

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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.