Home / 5,190,720.30-7,788,869.01-2,160,175.50

Finding the Fourth Proportional to 5,190,720.30, 7,788,869.01 and 2,160,175.50

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Solution

The fourth proportional to 5,190,720.30, 7,788,869.01 and 2,160,175.50 is: 3,241,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,720.30 : 7,788,869.01 = 2,160,175.50 : x
  2. Step 2: Convert to fraction form
    5,190,720.30/7,788,869.01 = 2,160,175.50/x
  3. Step 3: Cross multiply
    5,190,720.30x = 7,788,869.01 × 2,160,175.50
  4. Step 4: Simplify right side
    5,190,720.30x = 16,825,324,008,111.25
  5. Step 5: Solve for x
    x = 16,825,324,008,111.25/5,190,720.30
  6. Step 6: Final answer
    x = 3,241,423.74

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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.