Home / 3,117,979.80-4,676,969.70-1,916,004.60

Finding the Fourth Proportional to 3,117,979.80, 4,676,969.70 and 1,916,004.60

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Solution

The fourth proportional to 3,117,979.80, 4,676,969.70 and 1,916,004.60 is: 2,874,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117,979.80 : 4,676,969.70 = 1,916,004.60 : x
  2. Step 2: Convert to fraction form
    3,117,979.80/4,676,969.70 = 1,916,004.60/x
  3. Step 3: Cross multiply
    3,117,979.80x = 4,676,969.70 × 1,916,004.60
  4. Step 4: Simplify right side
    3,117,979.80x = 8,961,095,459,260.62
  5. Step 5: Solve for x
    x = 8,961,095,459,260.62/3,117,979.80
  6. Step 6: Final answer
    x = 2,874,006.90

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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.