Home / 20,671,857.69-28,527,526.44-11,252,919.54

Finding the Fourth Proportional to 20,671,857.69, 28,527,526.44 and 11,252,919.54

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Solution

The fourth proportional to 20,671,857.69, 28,527,526.44 and 11,252,919.54 is: 15,529,226.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,857.69 : 28,527,526.44 = 11,252,919.54 : x
  2. Step 2: Convert to fraction form
    20,671,857.69/28,527,526.44 = 11,252,919.54/x
  3. Step 3: Cross multiply
    20,671,857.69x = 28,527,526.44 × 11,252,919.54
  4. Step 4: Simplify right side
    20,671,857.69x = 321,017,959,648,278
  5. Step 5: Solve for x
    x = 321,017,959,648,278/20,671,857.69
  6. Step 6: Final answer
    x = 15,529,226.47

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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.