Home / 638,740,583.56-881,461,388.10-345,384,451.72

Finding the Fourth Proportional to 638,740,583.56, 881,461,388.10 and 345,384,451.72

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Solution

The fourth proportional to 638,740,583.56, 881,461,388.10 and 345,384,451.72 is: 476,630,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,740,583.56 : 881,461,388.10 = 345,384,451.72 : x
  2. Step 2: Convert to fraction form
    638,740,583.56/881,461,388.10 = 345,384,451.72/x
  3. Step 3: Cross multiply
    638,740,583.56x = 881,461,388.10 × 345,384,451.72
  4. Step 4: Simplify right side
    638,740,583.56x = 304,443,058,241,268,672
  5. Step 5: Solve for x
    x = 304,443,058,241,268,672/638,740,583.56
  6. Step 6: Final answer
    x = 476,630,209.63

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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.