Home / 815,809,317.45-1,125,781,654.19-463,384,211.01

Finding the Fourth Proportional to 815,809,317.45, 1,125,781,654.19 and 463,384,211.01

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Solution

The fourth proportional to 815,809,317.45, 1,125,781,654.19 and 463,384,211.01 is: 639,450,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,809,317.45 : 1,125,781,654.19 = 463,384,211.01 : x
  2. Step 2: Convert to fraction form
    815,809,317.45/1,125,781,654.19 = 463,384,211.01/x
  3. Step 3: Cross multiply
    815,809,317.45x = 1,125,781,654.19 × 463,384,211.01
  4. Step 4: Simplify right side
    815,809,317.45x = 521,669,443,594,048,832
  5. Step 5: Solve for x
    x = 521,669,443,594,048,832/815,809,317.45
  6. Step 6: Final answer
    x = 639,450,215.19

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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.