Home / 258,657,152.60-388,135,028.10-97,115,418.20

Finding the Fourth Proportional to 258,657,152.60, 388,135,028.10 and 97,115,418.20

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Solution

The fourth proportional to 258,657,152.60, 388,135,028.10 and 97,115,418.20 is: 145,729,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,657,152.60 : 388,135,028.10 = 97,115,418.20 : x
  2. Step 2: Convert to fraction form
    258,657,152.60/388,135,028.10 = 97,115,418.20/x
  3. Step 3: Cross multiply
    258,657,152.60x = 388,135,028.10 × 97,115,418.20
  4. Step 4: Simplify right side
    258,657,152.60x = 37,693,895,572,000,256
  5. Step 5: Solve for x
    x = 37,693,895,572,000,256/258,657,152.60
  6. Step 6: Final answer
    x = 145,729,183.18

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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.