Home / 5,190,592.72-7,161,979.08-2,898,400.72

Finding the Fourth Proportional to 5,190,592.72, 7,161,979.08 and 2,898,400.72

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Solution

The fourth proportional to 5,190,592.72, 7,161,979.08 and 2,898,400.72 is: 3,999,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,592.72 : 7,161,979.08 = 2,898,400.72 : x
  2. Step 2: Convert to fraction form
    5,190,592.72/7,161,979.08 = 2,898,400.72/x
  3. Step 3: Cross multiply
    5,190,592.72x = 7,161,979.08 × 2,898,400.72
  4. Step 4: Simplify right side
    5,190,592.72x = 20,758,285,322,096.94
  5. Step 5: Solve for x
    x = 20,758,285,322,096.94/5,190,592.72
  6. Step 6: Final answer
    x = 3,999,212.89

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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.