Home / 393,103,999.60-589,655,999.40-347,754,367.60

Finding the Fourth Proportional to 393,103,999.60, 589,655,999.40 and 347,754,367.60

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Solution

The fourth proportional to 393,103,999.60, 589,655,999.40 and 347,754,367.60 is: 521,631,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,103,999.60 : 589,655,999.40 = 347,754,367.60 : x
  2. Step 2: Convert to fraction form
    393,103,999.60/589,655,999.40 = 347,754,367.60/x
  3. Step 3: Cross multiply
    393,103,999.60x = 589,655,999.40 × 347,754,367.60
  4. Step 4: Simplify right side
    393,103,999.60x = 205,055,449,172,892,992
  5. Step 5: Solve for x
    x = 205,055,449,172,892,992/393,103,999.60
  6. Step 6: Final answer
    x = 521,631,551.40

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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.