Home / 390,677,352.20-539,114,947.13-231,914,261.44

Finding the Fourth Proportional to 390,677,352.20, 539,114,947.13 and 231,914,261.44

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Solution

The fourth proportional to 390,677,352.20, 539,114,947.13 and 231,914,261.44 is: 320,029,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,677,352.20 : 539,114,947.13 = 231,914,261.44 : x
  2. Step 2: Convert to fraction form
    390,677,352.20/539,114,947.13 = 231,914,261.44/x
  3. Step 3: Cross multiply
    390,677,352.20x = 539,114,947.13 × 231,914,261.44
  4. Step 4: Simplify right side
    390,677,352.20x = 125,028,444,795,106,816
  5. Step 5: Solve for x
    x = 125,028,444,795,106,816/390,677,352.20
  6. Step 6: Final answer
    x = 320,029,927.74

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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.