Home / 5,318,345.85-7,980,010.13-2,621,200.76

Finding the Fourth Proportional to 5,318,345.85, 7,980,010.13 and 2,621,200.76

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Solution

The fourth proportional to 5,318,345.85, 7,980,010.13 and 2,621,200.76 is: 3,933,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,345.85 : 7,980,010.13 = 2,621,200.76 : x
  2. Step 2: Convert to fraction form
    5,318,345.85/7,980,010.13 = 2,621,200.76/x
  3. Step 3: Cross multiply
    5,318,345.85x = 7,980,010.13 × 2,621,200.76
  4. Step 4: Simplify right side
    5,318,345.85x = 20,917,208,617,563.70
  5. Step 5: Solve for x
    x = 20,917,208,617,563.70/5,318,345.85
  6. Step 6: Final answer
    x = 3,933,029.03

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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.