Home / 497,918,355.42-687,187,583.81-283,389,159.72

Finding the Fourth Proportional to 497,918,355.42, 687,187,583.81 and 283,389,159.72

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Solution

The fourth proportional to 497,918,355.42, 687,187,583.81 and 283,389,159.72 is: 391,111,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,918,355.42 : 687,187,583.81 = 283,389,159.72 : x
  2. Step 2: Convert to fraction form
    497,918,355.42/687,187,583.81 = 283,389,159.72/x
  3. Step 3: Cross multiply
    497,918,355.42x = 687,187,583.81 × 283,389,159.72
  4. Step 4: Simplify right side
    497,918,355.42x = 194,741,511,945,932,992
  5. Step 5: Solve for x
    x = 194,741,511,945,932,992/497,918,355.42
  6. Step 6: Final answer
    x = 391,111,333.47

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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.