Home / 469,085,945.16-647,338,352.70-257,394,165.72

Finding the Fourth Proportional to 469,085,945.16, 647,338,352.70 and 257,394,165.72

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Solution

The fourth proportional to 469,085,945.16, 647,338,352.70 and 257,394,165.72 is: 355,203,810.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,085,945.16 : 647,338,352.70 = 257,394,165.72 : x
  2. Step 2: Convert to fraction form
    469,085,945.16/647,338,352.70 = 257,394,165.72/x
  3. Step 3: Cross multiply
    469,085,945.16x = 647,338,352.70 × 257,394,165.72
  4. Step 4: Simplify right side
    469,085,945.16x = 166,621,115,231,775,616
  5. Step 5: Solve for x
    x = 166,621,115,231,775,616/469,085,945.16
  6. Step 6: Final answer
    x = 355,203,810.63

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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.