Home / 399,255,539.40-598,883,309.10-340,804,902.60

Finding the Fourth Proportional to 399,255,539.40, 598,883,309.10 and 340,804,902.60

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Solution

The fourth proportional to 399,255,539.40, 598,883,309.10 and 340,804,902.60 is: 511,207,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,255,539.40 : 598,883,309.10 = 340,804,902.60 : x
  2. Step 2: Convert to fraction form
    399,255,539.40/598,883,309.10 = 340,804,902.60/x
  3. Step 3: Cross multiply
    399,255,539.40x = 598,883,309.10 × 340,804,902.60
  4. Step 4: Simplify right side
    399,255,539.40x = 204,102,367,826,591,232
  5. Step 5: Solve for x
    x = 204,102,367,826,591,232/399,255,539.40
  6. Step 6: Final answer
    x = 511,207,353.90

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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.