Home / 15,172,209.62-20,939,566.76-9,949,611.59

Finding the Fourth Proportional to 15,172,209.62, 20,939,566.76 and 9,949,611.59

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Solution

The fourth proportional to 15,172,209.62, 20,939,566.76 and 9,949,611.59 is: 13,731,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,209.62 : 20,939,566.76 = 9,949,611.59 : x
  2. Step 2: Convert to fraction form
    15,172,209.62/20,939,566.76 = 9,949,611.59/x
  3. Step 3: Cross multiply
    15,172,209.62x = 20,939,566.76 × 9,949,611.59
  4. Step 4: Simplify right side
    15,172,209.62x = 208,340,556,101,715.16
  5. Step 5: Solve for x
    x = 208,340,556,101,715.16/15,172,209.62
  6. Step 6: Final answer
    x = 13,731,721.44

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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.