Home / 2,191,771,439.37-3,288,205,330.72-639,062,760.80

Finding the Fourth Proportional to 2,191,771,439.37, 3,288,205,330.72 and 639,062,760.80

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Solution

The fourth proportional to 2,191,771,439.37, 3,288,205,330.72 and 639,062,760.80 is: 958,753,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,771,439.37 : 3,288,205,330.72 = 639,062,760.80 : x
  2. Step 2: Convert to fraction form
    2,191,771,439.37/3,288,205,330.72 = 639,062,760.80/x
  3. Step 3: Cross multiply
    2,191,771,439.37x = 3,288,205,330.72 × 639,062,760.80
  4. Step 4: Simplify right side
    2,191,771,439.37x = 2,101,369,576,733,823,232
  5. Step 5: Solve for x
    x = 2,101,369,576,733,823,232/2,191,771,439.37
  6. Step 6: Final answer
    x = 958,753,973.61

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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.