Home / 213,753,961.40-320,378,999.70-159,838,287.80

Finding the Fourth Proportional to 213,753,961.40, 320,378,999.70 and 159,838,287.80

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Solution

The fourth proportional to 213,753,961.40, 320,378,999.70 and 159,838,287.80 is: 239,569,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,753,961.40 : 320,378,999.70 = 159,838,287.80 : x
  2. Step 2: Convert to fraction form
    213,753,961.40/320,378,999.70 = 159,838,287.80/x
  3. Step 3: Cross multiply
    213,753,961.40x = 320,378,999.70 × 159,838,287.80
  4. Step 4: Simplify right side
    213,753,961.40x = 51,208,830,759,124,712
  5. Step 5: Solve for x
    x = 51,208,830,759,124,712/213,753,961.40
  6. Step 6: Final answer
    x = 239,569,037.33

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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.