Home / 7,168,619.88-9,892,654.74-3,905,427.96

Finding the Fourth Proportional to 7,168,619.88, 9,892,654.74 and 3,905,427.96

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Solution

The fourth proportional to 7,168,619.88, 9,892,654.74 and 3,905,427.96 is: 5,389,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,619.88 : 9,892,654.74 = 3,905,427.96 : x
  2. Step 2: Convert to fraction form
    7,168,619.88/9,892,654.74 = 3,905,427.96/x
  3. Step 3: Cross multiply
    7,168,619.88x = 9,892,654.74 × 3,905,427.96
  4. Step 4: Simplify right side
    7,168,619.88x = 38,635,050,420,222.53
  5. Step 5: Solve for x
    x = 38,635,050,420,222.53/7,168,619.88
  6. Step 6: Final answer
    x = 5,389,468.41

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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.