Home / 501,605,668.25-692,217,425.87-278,587,309.48

Finding the Fourth Proportional to 501,605,668.25, 692,217,425.87 and 278,587,309.48

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Solution

The fourth proportional to 501,605,668.25, 692,217,425.87 and 278,587,309.48 is: 384,451,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,605,668.25 : 692,217,425.87 = 278,587,309.48 : x
  2. Step 2: Convert to fraction form
    501,605,668.25/692,217,425.87 = 278,587,309.48/x
  3. Step 3: Cross multiply
    501,605,668.25x = 692,217,425.87 × 278,587,309.48
  4. Step 4: Simplify right side
    501,605,668.25x = 192,842,990,247,260,576
  5. Step 5: Solve for x
    x = 192,842,990,247,260,576/501,605,668.25
  6. Step 6: Final answer
    x = 384,451,377.76

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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.