Home / 20,357,131.82-30,535,678.28-5,211,039.02

Finding the Fourth Proportional to 20,357,131.82, 30,535,678.28 and 5,211,039.02

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Solution

The fourth proportional to 20,357,131.82, 30,535,678.28 and 5,211,039.02 is: 7,816,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,131.82 : 30,535,678.28 = 5,211,039.02 : x
  2. Step 2: Convert to fraction form
    20,357,131.82/30,535,678.28 = 5,211,039.02/x
  3. Step 3: Cross multiply
    20,357,131.82x = 30,535,678.28 × 5,211,039.02
  4. Step 4: Simplify right side
    20,357,131.82x = 159,122,610,879,595.69
  5. Step 5: Solve for x
    x = 159,122,610,879,595.69/20,357,131.82
  6. Step 6: Final answer
    x = 7,816,553.55

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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.