Home / 3,870,767.12-5,341,840.89-2,151,916.34

Finding the Fourth Proportional to 3,870,767.12, 5,341,840.89 and 2,151,916.34

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Solution

The fourth proportional to 3,870,767.12, 5,341,840.89 and 2,151,916.34 is: 2,969,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,767.12 : 5,341,840.89 = 2,151,916.34 : x
  2. Step 2: Convert to fraction form
    3,870,767.12/5,341,840.89 = 2,151,916.34/x
  3. Step 3: Cross multiply
    3,870,767.12x = 5,341,840.89 × 2,151,916.34
  4. Step 4: Simplify right side
    3,870,767.12x = 11,495,194,696,871.14
  5. Step 5: Solve for x
    x = 11,495,194,696,871.14/3,870,767.12
  6. Step 6: Final answer
    x = 2,969,745.88

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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.