Home / 5,079,378.69-7,009,628.09-2,787,752.61

Finding the Fourth Proportional to 5,079,378.69, 7,009,628.09 and 2,787,752.61

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Solution

The fourth proportional to 5,079,378.69, 7,009,628.09 and 2,787,752.61 is: 3,847,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079,378.69 : 7,009,628.09 = 2,787,752.61 : x
  2. Step 2: Convert to fraction form
    5,079,378.69/7,009,628.09 = 2,787,752.61/x
  3. Step 3: Cross multiply
    5,079,378.69x = 7,009,628.09 × 2,787,752.61
  4. Step 4: Simplify right side
    5,079,378.69x = 19,541,108,989,088.05
  5. Step 5: Solve for x
    x = 19,541,108,989,088.05/5,079,378.69
  6. Step 6: Final answer
    x = 3,847,145.52

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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.