Home / 7,218,667.62-9,961,763.40-3,955,455.72

Finding the Fourth Proportional to 7,218,667.62, 9,961,763.40 and 3,955,455.72

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Solution

The fourth proportional to 7,218,667.62, 9,961,763.40 and 3,955,455.72 is: 5,458,530.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,667.62 : 9,961,763.40 = 3,955,455.72 : x
  2. Step 2: Convert to fraction form
    7,218,667.62/9,961,763.40 = 3,955,455.72/x
  3. Step 3: Cross multiply
    7,218,667.62x = 9,961,763.40 × 3,955,455.72
  4. Step 4: Simplify right side
    7,218,667.62x = 39,403,314,021,816.65
  5. Step 5: Solve for x
    x = 39,403,314,021,816.65/7,218,667.62
  6. Step 6: Final answer
    x = 5,458,530.04

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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.