Home / 497,918,339.39-687,187,561.73-283,389,143.69

Finding the Fourth Proportional to 497,918,339.39, 687,187,561.73 and 283,389,143.69

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Solution

The fourth proportional to 497,918,339.39, 687,187,561.73 and 283,389,143.69 is: 391,111,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,918,339.39 : 687,187,561.73 = 283,389,143.69 : x
  2. Step 2: Convert to fraction form
    497,918,339.39/687,187,561.73 = 283,389,143.69/x
  3. Step 3: Cross multiply
    497,918,339.39x = 687,187,561.73 × 283,389,143.69
  4. Step 4: Simplify right side
    497,918,339.39x = 194,741,494,673,384,736
  5. Step 5: Solve for x
    x = 194,741,494,673,384,736/497,918,339.39
  6. Step 6: Final answer
    x = 391,111,311.37

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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.