Home / 2,105,160.10-3,158,129.71-666,205.68

Finding the Fourth Proportional to 2,105,160.10, 3,158,129.71 and 666,205.68

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Solution

The fourth proportional to 2,105,160.10, 3,158,129.71 and 666,205.68 is: 999,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,160.10 : 3,158,129.71 = 666,205.68 : x
  2. Step 2: Convert to fraction form
    2,105,160.10/3,158,129.71 = 666,205.68/x
  3. Step 3: Cross multiply
    2,105,160.10x = 3,158,129.71 × 666,205.68
  4. Step 4: Simplify right side
    2,105,160.10x = 2,103,963,963,654.50
  5. Step 5: Solve for x
    x = 2,103,963,963,654.50/2,105,160.10
  6. Step 6: Final answer
    x = 999,431.81

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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.