Home / 305,531,494,470.78-421,614,464,654.37-168,346,643,700.27

Finding the Fourth Proportional to 305,531,494,470.78, 421,614,464,654.37 and 168,346,643,700.27

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Solution

The fourth proportional to 305,531,494,470.78, 421,614,464,654.37 and 168,346,643,700.27 is: 232,307,900,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,531,494,470.78 : 421,614,464,654.37 = 168,346,643,700.27 : x
  2. Step 2: Convert to fraction form
    305,531,494,470.78/421,614,464,654.37 = 168,346,643,700.27/x
  3. Step 3: Cross multiply
    305,531,494,470.78x = 421,614,464,654.37 × 168,346,643,700.27
  4. Step 4: Simplify right side
    305,531,494,470.78x = 70,977,380,060,049,304,453,120
  5. Step 5: Solve for x
    x = 70,977,380,060,049,304,453,120/305,531,494,470.78
  6. Step 6: Final answer
    x = 232,307,900,640.46

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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.