Home / 399,255,551.40-598,883,327.10-340,804,914.60

Finding the Fourth Proportional to 399,255,551.40, 598,883,327.10 and 340,804,914.60

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Solution

The fourth proportional to 399,255,551.40, 598,883,327.10 and 340,804,914.60 is: 511,207,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,255,551.40 : 598,883,327.10 = 340,804,914.60 : x
  2. Step 2: Convert to fraction form
    399,255,551.40/598,883,327.10 = 340,804,914.60/x
  3. Step 3: Cross multiply
    399,255,551.40x = 598,883,327.10 × 340,804,914.60
  4. Step 4: Simplify right side
    399,255,551.40x = 204,102,381,147,679,392
  5. Step 5: Solve for x
    x = 204,102,381,147,679,392/399,255,551.40
  6. Step 6: Final answer
    x = 511,207,371.90

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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.