Home / 7,191,051.30-9,923,585.22-3,927,865.50

Finding the Fourth Proportional to 7,191,051.30, 9,923,585.22 and 3,927,865.50

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Solution

The fourth proportional to 7,191,051.30, 9,923,585.22 and 3,927,865.50 is: 5,420,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,051.30 : 9,923,585.22 = 3,927,865.50 : x
  2. Step 2: Convert to fraction form
    7,191,051.30/9,923,585.22 = 3,927,865.50/x
  3. Step 3: Cross multiply
    7,191,051.30x = 9,923,585.22 × 3,927,865.50
  4. Step 4: Simplify right side
    7,191,051.30x = 38,978,508,021,947.91
  5. Step 5: Solve for x
    x = 38,978,508,021,947.91/7,191,051.30
  6. Step 6: Final answer
    x = 5,420,418.57

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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.