Home / 5,178,365.70-7,145,995.86-2,886,477.18

Finding the Fourth Proportional to 5,178,365.70, 7,145,995.86 and 2,886,477.18

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Solution

The fourth proportional to 5,178,365.70, 7,145,995.86 and 2,886,477.18 is: 3,983,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,365.70 : 7,145,995.86 = 2,886,477.18 : x
  2. Step 2: Convert to fraction form
    5,178,365.70/7,145,995.86 = 2,886,477.18/x
  3. Step 3: Cross multiply
    5,178,365.70x = 7,145,995.86 × 2,886,477.18
  4. Step 4: Simplify right side
    5,178,365.70x = 20,626,753,978,264.48
  5. Step 5: Solve for x
    x = 20,626,753,978,264.48/5,178,365.70
  6. Step 6: Final answer
    x = 3,983,255.56

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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.