Home / 3,418,900.76-4,718,318.38-1,968,978.08

Finding the Fourth Proportional to 3,418,900.76, 4,718,318.38 and 1,968,978.08

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Solution

The fourth proportional to 3,418,900.76, 4,718,318.38 and 1,968,978.08 is: 2,717,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,900.76 : 4,718,318.38 = 1,968,978.08 : x
  2. Step 2: Convert to fraction form
    3,418,900.76/4,718,318.38 = 1,968,978.08/x
  3. Step 3: Cross multiply
    3,418,900.76x = 4,718,318.38 × 1,968,978.08
  4. Step 4: Simplify right side
    3,418,900.76x = 9,290,265,464,681.11
  5. Step 5: Solve for x
    x = 9,290,265,464,681.11/3,418,900.76
  6. Step 6: Final answer
    x = 2,717,325.28

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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.