Home / 729,453,925.89-1,006,654,538.61-394,933,738.23

Finding the Fourth Proportional to 729,453,925.89, 1,006,654,538.61 and 394,933,738.23

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Solution

The fourth proportional to 729,453,925.89, 1,006,654,538.61 and 394,933,738.23 is: 545,012,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,453,925.89 : 1,006,654,538.61 = 394,933,738.23 : x
  2. Step 2: Convert to fraction form
    729,453,925.89/1,006,654,538.61 = 394,933,738.23/x
  3. Step 3: Cross multiply
    729,453,925.89x = 1,006,654,538.61 × 394,933,738.23
  4. Step 4: Simplify right side
    729,453,925.89x = 397,561,840,039,443,200
  5. Step 5: Solve for x
    x = 397,561,840,039,443,200/729,453,925.89
  6. Step 6: Final answer
    x = 545,012,955.48

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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.