Home / 12,203,901.12-16,840,157.54-7,308,997.86

Finding the Fourth Proportional to 12,203,901.12, 16,840,157.54 and 7,308,997.86

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Solution

The fourth proportional to 12,203,901.12, 16,840,157.54 and 7,308,997.86 is: 10,085,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203,901.12 : 16,840,157.54 = 7,308,997.86 : x
  2. Step 2: Convert to fraction form
    12,203,901.12/16,840,157.54 = 7,308,997.86/x
  3. Step 3: Cross multiply
    12,203,901.12x = 16,840,157.54 × 7,308,997.86
  4. Step 4: Simplify right side
    12,203,901.12x = 123,084,675,421,922.86
  5. Step 5: Solve for x
    x = 123,084,675,421,922.86/12,203,901.12
  6. Step 6: Final answer
    x = 10,085,682.78

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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.