Home / 305,907,495.40-422,147,006.82-166,679,409.64

Finding the Fourth Proportional to 305,907,495.40, 422,147,006.82 and 166,679,409.64

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Solution

The fourth proportional to 305,907,495.40, 422,147,006.82 and 166,679,409.64 is: 230,014,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,907,495.40 : 422,147,006.82 = 166,679,409.64 : x
  2. Step 2: Convert to fraction form
    305,907,495.40/422,147,006.82 = 166,679,409.64/x
  3. Step 3: Cross multiply
    305,907,495.40x = 422,147,006.82 × 166,679,409.64
  4. Step 4: Simplify right side
    305,907,495.40x = 70,363,213,878,050,648
  5. Step 5: Solve for x
    x = 70,363,213,878,050,648/305,907,495.40
  6. Step 6: Final answer
    x = 230,014,677.43

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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.