Home / 511,860,947.96-706,388,135.37-300,138,352.76

Finding the Fourth Proportional to 511,860,947.96, 706,388,135.37 and 300,138,352.76

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Solution

The fourth proportional to 511,860,947.96, 706,388,135.37 and 300,138,352.76 is: 414,202,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,860,947.96 : 706,388,135.37 = 300,138,352.76 : x
  2. Step 2: Convert to fraction form
    511,860,947.96/706,388,135.37 = 300,138,352.76/x
  3. Step 3: Cross multiply
    511,860,947.96x = 706,388,135.37 × 300,138,352.76
  4. Step 4: Simplify right side
    511,860,947.96x = 212,014,171,359,159,680
  5. Step 5: Solve for x
    x = 212,014,171,359,159,680/511,860,947.96
  6. Step 6: Final answer
    x = 414,202,670.09

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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.