Home / 7,142,700.33-9,856,998.09-3,879,578.88

Finding the Fourth Proportional to 7,142,700.33, 9,856,998.09 and 3,879,578.88

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Solution

The fourth proportional to 7,142,700.33, 9,856,998.09 and 3,879,578.88 is: 5,353,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,700.33 : 9,856,998.09 = 3,879,578.88 : x
  2. Step 2: Convert to fraction form
    7,142,700.33/9,856,998.09 = 3,879,578.88/x
  3. Step 3: Cross multiply
    7,142,700.33x = 9,856,998.09 × 3,879,578.88
  4. Step 4: Simplify right side
    7,142,700.33x = 38,241,001,610,164.34
  5. Step 5: Solve for x
    x = 38,241,001,610,164.34/7,142,700.33
  6. Step 6: Final answer
    x = 5,353,857.76

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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.