Home / 20,700,939.03-31,011,611.22-11,575,358.75

Finding the Fourth Proportional to 20,700,939.03, 31,011,611.22 and 11,575,358.75

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Solution

The fourth proportional to 20,700,939.03, 31,011,611.22 and 11,575,358.75 is: 17,340,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700,939.03 : 31,011,611.22 = 11,575,358.75 : x
  2. Step 2: Convert to fraction form
    20,700,939.03/31,011,611.22 = 11,575,358.75/x
  3. Step 3: Cross multiply
    20,700,939.03x = 31,011,611.22 × 11,575,358.75
  4. Step 4: Simplify right side
    20,700,939.03x = 358,970,525,131,967.06
  5. Step 5: Solve for x
    x = 358,970,525,131,967.06/20,700,939.03
  6. Step 6: Final answer
    x = 17,340,784.62

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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.