Home / 305,531,494,850.28-421,614,465,177.76-168,346,644,079.50

Finding the Fourth Proportional to 305,531,494,850.28, 421,614,465,177.76 and 168,346,644,079.50

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Solution

The fourth proportional to 305,531,494,850.28, 421,614,465,177.76 and 168,346,644,079.50 is: 232,307,901,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,531,494,850.28 : 421,614,465,177.76 = 168,346,644,079.50 : x
  2. Step 2: Convert to fraction form
    305,531,494,850.28/421,614,465,177.76 = 168,346,644,079.50/x
  3. Step 3: Cross multiply
    305,531,494,850.28x = 421,614,465,177.76 × 168,346,644,079.50
  4. Step 4: Simplify right side
    305,531,494,850.28x = 70,977,380,308,049,113,120,768
  5. Step 5: Solve for x
    x = 70,977,380,308,049,113,120,768/305,531,494,850.28
  6. Step 6: Final answer
    x = 232,307,901,163.61

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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.