Home / 5,380,133.40-8,072,362.80-2,185,509.60

Finding the Fourth Proportional to 5,380,133.40, 8,072,362.80 and 2,185,509.60

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Solution

The fourth proportional to 5,380,133.40, 8,072,362.80 and 2,185,509.60 is: 3,279,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380,133.40 : 8,072,362.80 = 2,185,509.60 : x
  2. Step 2: Convert to fraction form
    5,380,133.40/8,072,362.80 = 2,185,509.60/x
  3. Step 3: Cross multiply
    5,380,133.40x = 8,072,362.80 × 2,185,509.60
  4. Step 4: Simplify right side
    5,380,133.40x = 17,642,226,394,082.88
  5. Step 5: Solve for x
    x = 17,642,226,394,082.88/5,380,133.40
  6. Step 6: Final answer
    x = 3,279,142.93

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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.