Home / 20,704,175.92-28,573,888.80-12,446,911.36

Finding the Fourth Proportional to 20,704,175.92, 28,573,888.80 and 12,446,911.36

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Solution

The fourth proportional to 20,704,175.92, 28,573,888.80 and 12,446,911.36 is: 17,178,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,175.92 : 28,573,888.80 = 12,446,911.36 : x
  2. Step 2: Convert to fraction form
    20,704,175.92/28,573,888.80 = 12,446,911.36/x
  3. Step 3: Cross multiply
    20,704,175.92x = 28,573,888.80 × 12,446,911.36
  4. Step 4: Simplify right side
    20,704,175.92x = 355,656,661,104,096.75
  5. Step 5: Solve for x
    x = 355,656,661,104,096.75/20,704,175.92
  6. Step 6: Final answer
    x = 17,178,015.80

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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.