Home / 5,209,961.56-7,189,887.18-2,918,071.96

Finding the Fourth Proportional to 5,209,961.56, 7,189,887.18 and 2,918,071.96

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Solution

The fourth proportional to 5,209,961.56, 7,189,887.18 and 2,918,071.96 is: 4,027,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209,961.56 : 7,189,887.18 = 2,918,071.96 : x
  2. Step 2: Convert to fraction form
    5,209,961.56/7,189,887.18 = 2,918,071.96/x
  3. Step 3: Cross multiply
    5,209,961.56x = 7,189,887.18 × 2,918,071.96
  4. Step 4: Simplify right side
    5,209,961.56x = 20,980,608,175,521.47
  5. Step 5: Solve for x
    x = 20,980,608,175,521.47/5,209,961.56
  6. Step 6: Final answer
    x = 4,027,017.85

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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.