Home / 821,351,019.52-1,232,028,629.34-207,935,310.88

Finding the Fourth Proportional to 821,351,019.52, 1,232,028,629.34 and 207,935,310.88

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Solution

The fourth proportional to 821,351,019.52, 1,232,028,629.34 and 207,935,310.88 is: 311,903,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,351,019.52 : 1,232,028,629.34 = 207,935,310.88 : x
  2. Step 2: Convert to fraction form
    821,351,019.52/1,232,028,629.34 = 207,935,310.88/x
  3. Step 3: Cross multiply
    821,351,019.52x = 1,232,028,629.34 × 207,935,310.88
  4. Step 4: Simplify right side
    821,351,019.52x = 256,182,256,054,873,152
  5. Step 5: Solve for x
    x = 256,182,256,054,873,152/821,351,019.52
  6. Step 6: Final answer
    x = 311,903,497.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.