Home / 318,098,344,184.72-438,985,029,405.48-173,591,785,362.32

Finding the Fourth Proportional to 318,098,344,184.72, 438,985,029,405.48 and 173,591,785,362.32

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Solution

The fourth proportional to 318,098,344,184.72, 438,985,029,405.48 and 173,591,785,362.32 is: 239,561,746,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098,344,184.72 : 438,985,029,405.48 = 173,591,785,362.32 : x
  2. Step 2: Convert to fraction form
    318,098,344,184.72/438,985,029,405.48 = 173,591,785,362.32/x
  3. Step 3: Cross multiply
    318,098,344,184.72x = 438,985,029,405.48 × 173,591,785,362.32
  4. Step 4: Simplify right side
    318,098,344,184.72x = 76,204,195,001,827,820,830,720
  5. Step 5: Solve for x
    x = 76,204,195,001,827,820,830,720/318,098,344,184.72
  6. Step 6: Final answer
    x = 239,561,746,846.37

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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.