Home / 3,991,802.66-5,508,689.69-2,156,260.85

Finding the Fourth Proportional to 3,991,802.66, 5,508,689.69 and 2,156,260.85

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Solution

The fourth proportional to 3,991,802.66, 5,508,689.69 and 2,156,260.85 is: 2,975,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,802.66 : 5,508,689.69 = 2,156,260.85 : x
  2. Step 2: Convert to fraction form
    3,991,802.66/5,508,689.69 = 2,156,260.85/x
  3. Step 3: Cross multiply
    3,991,802.66x = 5,508,689.69 × 2,156,260.85
  4. Step 4: Simplify right side
    3,991,802.66x = 11,878,171,875,020.88
  5. Step 5: Solve for x
    x = 11,878,171,875,020.88/3,991,802.66
  6. Step 6: Final answer
    x = 2,975,641.06

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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.