Home / 7,189,505.91-9,921,597.57-3,926,416.86

Finding the Fourth Proportional to 7,189,505.91, 9,921,597.57 and 3,926,416.86

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Solution

The fourth proportional to 7,189,505.91, 9,921,597.57 and 3,926,416.86 is: 5,418,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,505.91 : 9,921,597.57 = 3,926,416.86 : x
  2. Step 2: Convert to fraction form
    7,189,505.91/9,921,597.57 = 3,926,416.86/x
  3. Step 3: Cross multiply
    7,189,505.91x = 9,921,597.57 × 3,926,416.86
  4. Step 4: Simplify right side
    7,189,505.91x = 38,956,327,976,983.03
  5. Step 5: Solve for x
    x = 38,956,327,976,983.03/7,189,505.91
  6. Step 6: Final answer
    x = 5,418,498.64

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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.