Home / 501,605,673.26-692,217,432.78-278,587,314.47

Finding the Fourth Proportional to 501,605,673.26, 692,217,432.78 and 278,587,314.47

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Solution

The fourth proportional to 501,605,673.26, 692,217,432.78 and 278,587,314.47 is: 384,451,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,605,673.26 : 692,217,432.78 = 278,587,314.47 : x
  2. Step 2: Convert to fraction form
    501,605,673.26/692,217,432.78 = 278,587,314.47/x
  3. Step 3: Cross multiply
    501,605,673.26x = 692,217,432.78 × 278,587,314.47
  4. Step 4: Simplify right side
    501,605,673.26x = 192,842,995,627,497,952
  5. Step 5: Solve for x
    x = 192,842,995,627,497,952/501,605,673.26
  6. Step 6: Final answer
    x = 384,451,384.64

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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.