Home / 213,662,409.30-320,829,537.15-122,963,145.30

Finding the Fourth Proportional to 213,662,409.30, 320,829,537.15 and 122,963,145.30

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Solution

The fourth proportional to 213,662,409.30, 320,829,537.15 and 122,963,145.30 is: 184,638,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,662,409.30 : 320,829,537.15 = 122,963,145.30 : x
  2. Step 2: Convert to fraction form
    213,662,409.30/320,829,537.15 = 122,963,145.30/x
  3. Step 3: Cross multiply
    213,662,409.30x = 320,829,537.15 × 122,963,145.30
  4. Step 4: Simplify right side
    213,662,409.30x = 39,450,208,993,107,192
  5. Step 5: Solve for x
    x = 39,450,208,993,107,192/213,662,409.30
  6. Step 6: Final answer
    x = 184,638,042.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.