Home / 12,149,007.86-16,765,661-6,642,738.04

Finding the Fourth Proportional to 12,149,007.86, 16,765,661 and 6,642,738.04

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Solution

The fourth proportional to 12,149,007.86, 16,765,661 and 6,642,738.04 is: 9,166,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149,007.86 : 16,765,661 = 6,642,738.04 : x
  2. Step 2: Convert to fraction form
    12,149,007.86/16,765,661 = 6,642,738.04/x
  3. Step 3: Cross multiply
    12,149,007.86x = 16,765,661 × 6,642,738.04
  4. Step 4: Simplify right side
    12,149,007.86x = 111,369,894,090,444.44
  5. Step 5: Solve for x
    x = 111,369,894,090,444.44/12,149,007.86
  6. Step 6: Final answer
    x = 9,166,994.98

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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.