Home / 686,201,429.80-946,965,286.02-372,935,659.96

Finding the Fourth Proportional to 686,201,429.80, 946,965,286.02 and 372,935,659.96

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Solution

The fourth proportional to 686,201,429.80, 946,965,286.02 and 372,935,659.96 is: 514,655,185.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,201,429.80 : 946,965,286.02 = 372,935,659.96 : x
  2. Step 2: Convert to fraction form
    686,201,429.80/946,965,286.02 = 372,935,659.96/x
  3. Step 3: Cross multiply
    686,201,429.80x = 946,965,286.02 × 372,935,659.96
  4. Step 4: Simplify right side
    686,201,429.80x = 353,157,123,901,078,848
  5. Step 5: Solve for x
    x = 353,157,123,901,078,848/686,201,429.80
  6. Step 6: Final answer
    x = 514,655,185.15

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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.