Home / 7,190,987.15-9,923,551.18-3,927,801.92

Finding the Fourth Proportional to 7,190,987.15, 9,923,551.18 and 3,927,801.92

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Solution

The fourth proportional to 7,190,987.15, 9,923,551.18 and 3,927,801.92 is: 5,420,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,987.15 : 9,923,551.18 = 3,927,801.92 : x
  2. Step 2: Convert to fraction form
    7,190,987.15/9,923,551.18 = 3,927,801.92/x
  3. Step 3: Cross multiply
    7,190,987.15x = 9,923,551.18 × 3,927,801.92
  4. Step 4: Simplify right side
    7,190,987.15x = 38,977,743,318,585.01
  5. Step 5: Solve for x
    x = 38,977,743,318,585.01/7,190,987.15
  6. Step 6: Final answer
    x = 5,420,360.58

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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.