Home / 318,098,344,182.72-438,985,029,402.72-173,591,785,360.32

Finding the Fourth Proportional to 318,098,344,182.72, 438,985,029,402.72 and 173,591,785,360.32

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Solution

The fourth proportional to 318,098,344,182.72, 438,985,029,402.72 and 173,591,785,360.32 is: 239,561,746,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098,344,182.72 : 438,985,029,402.72 = 173,591,785,360.32 : x
  2. Step 2: Convert to fraction form
    318,098,344,182.72/438,985,029,402.72 = 173,591,785,360.32/x
  3. Step 3: Cross multiply
    318,098,344,182.72x = 438,985,029,402.72 × 173,591,785,360.32
  4. Step 4: Simplify right side
    318,098,344,182.72x = 76,204,195,000,470,728,605,696
  5. Step 5: Solve for x
    x = 76,204,195,000,470,728,605,696/318,098,344,182.72
  6. Step 6: Final answer
    x = 239,561,746,843.61

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1.5x scale

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.