Home / 392,305,790.80-588,458,686.20-349,979,467.60

Finding the Fourth Proportional to 392,305,790.80, 588,458,686.20 and 349,979,467.60

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Solution

The fourth proportional to 392,305,790.80, 588,458,686.20 and 349,979,467.60 is: 524,969,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,305,790.80 : 588,458,686.20 = 349,979,467.60 : x
  2. Step 2: Convert to fraction form
    392,305,790.80/588,458,686.20 = 349,979,467.60/x
  3. Step 3: Cross multiply
    392,305,790.80x = 588,458,686.20 × 349,979,467.60
  4. Step 4: Simplify right side
    392,305,790.80x = 205,948,457,700,871,488
  5. Step 5: Solve for x
    x = 205,948,457,700,871,488/392,305,790.80
  6. Step 6: Final answer
    x = 524,969,201.40

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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.