Home / 7,253,970.96-10,010,479.87-3,990,715.66

Finding the Fourth Proportional to 7,253,970.96, 10,010,479.87 and 3,990,715.66

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Solution

The fourth proportional to 7,253,970.96, 10,010,479.87 and 3,990,715.66 is: 5,507,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253,970.96 : 10,010,479.87 = 3,990,715.66 : x
  2. Step 2: Convert to fraction form
    7,253,970.96/10,010,479.87 = 3,990,715.66/x
  3. Step 3: Cross multiply
    7,253,970.96x = 10,010,479.87 × 3,990,715.66
  4. Step 4: Simplify right side
    7,253,970.96x = 39,948,978,761,370.19
  5. Step 5: Solve for x
    x = 39,948,978,761,370.19/7,253,970.96
  6. Step 6: Final answer
    x = 5,507,187.58

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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.