Home / 745,085,187.90-1,028,171,230.47-410,538,988.80

Finding the Fourth Proportional to 745,085,187.90, 1,028,171,230.47 and 410,538,988.80

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Solution

The fourth proportional to 745,085,187.90, 1,028,171,230.47 and 410,538,988.80 is: 566,518,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,085,187.90 : 1,028,171,230.47 = 410,538,988.80 : x
  2. Step 2: Convert to fraction form
    745,085,187.90/1,028,171,230.47 = 410,538,988.80/x
  3. Step 3: Cross multiply
    745,085,187.90x = 1,028,171,230.47 × 410,538,988.80
  4. Step 4: Simplify right side
    745,085,187.90x = 422,104,377,270,405,568
  5. Step 5: Solve for x
    x = 422,104,377,270,405,568/745,085,187.90
  6. Step 6: Final answer
    x = 566,518,277.54

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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.