Home / 21,990,064.86-30,345,261.39-12,200,404.86

Finding the Fourth Proportional to 21,990,064.86, 30,345,261.39 and 12,200,404.86

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Solution

The fourth proportional to 21,990,064.86, 30,345,261.39 and 12,200,404.86 is: 16,835,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,990,064.86 : 30,345,261.39 = 12,200,404.86 : x
  2. Step 2: Convert to fraction form
    21,990,064.86/30,345,261.39 = 12,200,404.86/x
  3. Step 3: Cross multiply
    21,990,064.86x = 30,345,261.39 × 12,200,404.86
  4. Step 4: Simplify right side
    21,990,064.86x = 370,224,474,540,526.38
  5. Step 5: Solve for x
    x = 370,224,474,540,526.38/21,990,064.86
  6. Step 6: Final answer
    x = 16,835,988.29

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1.5x scale

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.