Home / 5,355,808.48-7,387,770-3,178,917.28

Finding the Fourth Proportional to 5,355,808.48, 7,387,770 and 3,178,917.28

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Solution

The fourth proportional to 5,355,808.48, 7,387,770 and 3,178,917.28 is: 4,384,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355,808.48 : 7,387,770 = 3,178,917.28 : x
  2. Step 2: Convert to fraction form
    5,355,808.48/7,387,770 = 3,178,917.28/x
  3. Step 3: Cross multiply
    5,355,808.48x = 7,387,770 × 3,178,917.28
  4. Step 4: Simplify right side
    5,355,808.48x = 23,485,109,713,665.60
  5. Step 5: Solve for x
    x = 23,485,109,713,665.60/5,355,808.48
  6. Step 6: Final answer
    x = 4,384,979.37

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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.