Home / 6,781,071.96-10,171,692-1,988,860.15

Finding the Fourth Proportional to 6,781,071.96, 10,171,692 and 1,988,860.15

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Solution

The fourth proportional to 6,781,071.96, 10,171,692 and 1,988,860.15 is: 2,983,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781,071.96 : 10,171,692 = 1,988,860.15 : x
  2. Step 2: Convert to fraction form
    6,781,071.96/10,171,692 = 1,988,860.15/x
  3. Step 3: Cross multiply
    6,781,071.96x = 10,171,692 × 1,988,860.15
  4. Step 4: Simplify right side
    6,781,071.96x = 20,230,072,889,588.42
  5. Step 5: Solve for x
    x = 20,230,072,889,588.42/6,781,071.96
  6. Step 6: Final answer
    x = 2,983,314.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.