Home / 7,836,129.76-11,748,828.57-3,990,508.15

Finding the Fourth Proportional to 7,836,129.76, 11,748,828.57 and 3,990,508.15

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Solution

The fourth proportional to 7,836,129.76, 11,748,828.57 and 3,990,508.15 is: 5,983,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836,129.76 : 11,748,828.57 = 3,990,508.15 : x
  2. Step 2: Convert to fraction form
    7,836,129.76/11,748,828.57 = 3,990,508.15/x
  3. Step 3: Cross multiply
    7,836,129.76x = 11,748,828.57 × 3,990,508.15
  4. Step 4: Simplify right side
    7,836,129.76x = 46,883,796,161,537.84
  5. Step 5: Solve for x
    x = 46,883,796,161,537.84/7,836,129.76
  6. Step 6: Final answer
    x = 5,983,029.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.