Home / 491,833,365.20-737,750,047.80-128,327,721.20

Finding the Fourth Proportional to 491,833,365.20, 737,750,047.80 and 128,327,721.20

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Solution

The fourth proportional to 491,833,365.20, 737,750,047.80 and 128,327,721.20 is: 192,491,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,833,365.20 : 737,750,047.80 = 128,327,721.20 : x
  2. Step 2: Convert to fraction form
    491,833,365.20/737,750,047.80 = 128,327,721.20/x
  3. Step 3: Cross multiply
    491,833,365.20x = 737,750,047.80 × 128,327,721.20
  4. Step 4: Simplify right side
    491,833,365.20x = 94,673,782,449,365,072
  5. Step 5: Solve for x
    x = 94,673,782,449,365,072/491,833,365.20
  6. Step 6: Final answer
    x = 192,491,581.80

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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.