Home / 5,120,876.20-7,066,756.02-2,828,887.24

Finding the Fourth Proportional to 5,120,876.20, 7,066,756.02 and 2,828,887.24

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Solution

The fourth proportional to 5,120,876.20, 7,066,756.02 and 2,828,887.24 is: 3,903,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,876.20 : 7,066,756.02 = 2,828,887.24 : x
  2. Step 2: Convert to fraction form
    5,120,876.20/7,066,756.02 = 2,828,887.24/x
  3. Step 3: Cross multiply
    5,120,876.20x = 7,066,756.02 × 2,828,887.24
  4. Step 4: Simplify right side
    5,120,876.20x = 19,991,055,933,171.18
  5. Step 5: Solve for x
    x = 19,991,055,933,171.18/5,120,876.20
  6. Step 6: Final answer
    x = 3,903,835.04

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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.