Home / 724,629,420,837.25-999,991,631,712.85-399,461,575,175.97

Finding the Fourth Proportional to 724,629,420,837.25, 999,991,631,712.85 and 399,461,575,175.97

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Solution

The fourth proportional to 724,629,420,837.25, 999,991,631,712.85 and 399,461,575,175.97 is: 551,258,644,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,629,420,837.25 : 999,991,631,712.85 = 399,461,575,175.97 : x
  2. Step 2: Convert to fraction form
    724,629,420,837.25/999,991,631,712.85 = 399,461,575,175.97/x
  3. Step 3: Cross multiply
    724,629,420,837.25x = 999,991,631,712.85 × 399,461,575,175.97
  4. Step 4: Simplify right side
    724,629,420,837.25x = 399,458,232,366,803,491,749,888
  5. Step 5: Solve for x
    x = 399,458,232,366,803,491,749,888/724,629,420,837.25
  6. Step 6: Final answer
    x = 551,258,644,598.31

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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.