Home / 5,078,105.73-7,007,914.80-2,786,265.81

Finding the Fourth Proportional to 5,078,105.73, 7,007,914.80 and 2,786,265.81

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Solution

The fourth proportional to 5,078,105.73, 7,007,914.80 and 2,786,265.81 is: 3,845,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078,105.73 : 7,007,914.80 = 2,786,265.81 : x
  2. Step 2: Convert to fraction form
    5,078,105.73/7,007,914.80 = 2,786,265.81/x
  3. Step 3: Cross multiply
    5,078,105.73x = 7,007,914.80 × 2,786,265.81
  4. Step 4: Simplify right side
    5,078,105.73x = 19,525,913,406,632.99
  5. Step 5: Solve for x
    x = 19,525,913,406,632.99/5,078,105.73
  6. Step 6: Final answer
    x = 3,845,117.54

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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.