Home / 426,039,163.40-639,058,745.10-167,121,108.20

Finding the Fourth Proportional to 426,039,163.40, 639,058,745.10 and 167,121,108.20

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Solution

The fourth proportional to 426,039,163.40, 639,058,745.10 and 167,121,108.20 is: 250,681,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,039,163.40 : 639,058,745.10 = 167,121,108.20 : x
  2. Step 2: Convert to fraction form
    426,039,163.40/639,058,745.10 = 167,121,108.20/x
  3. Step 3: Cross multiply
    426,039,163.40x = 639,058,745.10 × 167,121,108.20
  4. Step 4: Simplify right side
    426,039,163.40x = 106,800,205,686,013,312
  5. Step 5: Solve for x
    x = 106,800,205,686,013,312/426,039,163.40
  6. Step 6: Final answer
    x = 250,681,662.30

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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.