Home / 305,531,494,825.38-421,614,465,143.46-168,346,644,054.61

Finding the Fourth Proportional to 305,531,494,825.38, 421,614,465,143.46 and 168,346,644,054.61

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Solution

The fourth proportional to 305,531,494,825.38, 421,614,465,143.46 and 168,346,644,054.61 is: 232,307,901,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,531,494,825.38 : 421,614,465,143.46 = 168,346,644,054.61 : x
  2. Step 2: Convert to fraction form
    305,531,494,825.38/421,614,465,143.46 = 168,346,644,054.61/x
  3. Step 3: Cross multiply
    305,531,494,825.38x = 421,614,465,143.46 × 168,346,644,054.61
  4. Step 4: Simplify right side
    305,531,494,825.38x = 70,977,380,291,780,833,968,128
  5. Step 5: Solve for x
    x = 70,977,380,291,780,833,968,128/305,531,494,825.38
  6. Step 6: Final answer
    x = 232,307,901,129.30

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1.5x scale

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.