Home / 3,179,036.70-4,387,186.01-1,821,172.14

Finding the Fourth Proportional to 3,179,036.70, 4,387,186.01 and 1,821,172.14

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Solution

The fourth proportional to 3,179,036.70, 4,387,186.01 and 1,821,172.14 is: 2,513,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,036.70 : 4,387,186.01 = 1,821,172.14 : x
  2. Step 2: Convert to fraction form
    3,179,036.70/4,387,186.01 = 1,821,172.14/x
  3. Step 3: Cross multiply
    3,179,036.70x = 4,387,186.01 × 1,821,172.14
  4. Step 4: Simplify right side
    3,179,036.70x = 7,989,820,934,409.76
  5. Step 5: Solve for x
    x = 7,989,820,934,409.76/3,179,036.70
  6. Step 6: Final answer
    x = 2,513,283.64

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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.