Home / 7,142,701.33-9,856,999.47-3,879,579.88

Finding the Fourth Proportional to 7,142,701.33, 9,856,999.47 and 3,879,579.88

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Solution

The fourth proportional to 7,142,701.33, 9,856,999.47 and 3,879,579.88 is: 5,353,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,701.33 : 9,856,999.47 = 3,879,579.88 : x
  2. Step 2: Convert to fraction form
    7,142,701.33/9,856,999.47 = 3,879,579.88/x
  3. Step 3: Cross multiply
    7,142,701.33x = 9,856,999.47 × 3,879,579.88
  4. Step 4: Simplify right side
    7,142,701.33x = 38,241,016,820,982.66
  5. Step 5: Solve for x
    x = 38,241,016,820,982.66/7,142,701.33
  6. Step 6: Final answer
    x = 5,353,859.14

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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.