Home / 3,991,355.28-5,501,599.56-3,118,664.16

Finding the Fourth Proportional to 3,991,355.28, 5,501,599.56 and 3,118,664.16

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Solution

The fourth proportional to 3,991,355.28, 5,501,599.56 and 3,118,664.16 is: 4,298,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,355.28 : 5,501,599.56 = 3,118,664.16 : x
  2. Step 2: Convert to fraction form
    3,991,355.28/5,501,599.56 = 3,118,664.16/x
  3. Step 3: Cross multiply
    3,991,355.28x = 5,501,599.56 × 3,118,664.16
  4. Step 4: Simplify right side
    3,991,355.28x = 17,157,641,370,443.77
  5. Step 5: Solve for x
    x = 17,157,641,370,443.77/3,991,355.28
  6. Step 6: Final answer
    x = 4,298,700.61

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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.