Home / 258,287,360,416.80-387,431,040,625.20-254,804,508,679.20

Finding the Fourth Proportional to 258,287,360,416.80, 387,431,040,625.20 and 254,804,508,679.20

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Solution

The fourth proportional to 258,287,360,416.80, 387,431,040,625.20 and 254,804,508,679.20 is: 382,206,763,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,287,360,416.80 : 387,431,040,625.20 = 254,804,508,679.20 : x
  2. Step 2: Convert to fraction form
    258,287,360,416.80/387,431,040,625.20 = 254,804,508,679.20/x
  3. Step 3: Cross multiply
    258,287,360,416.80x = 387,431,040,625.20 × 254,804,508,679.20
  4. Step 4: Simplify right side
    258,287,360,416.80x = 98,719,175,953,575,269,367,808
  5. Step 5: Solve for x
    x = 98,719,175,953,575,269,367,808/258,287,360,416.80
  6. Step 6: Final answer
    x = 382,206,763,018.80

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1.5x scale

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.