Home / 12,628,781.15-18,940,275.77-3,531,518.06

Finding the Fourth Proportional to 12,628,781.15, 18,940,275.77 and 3,531,518.06

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Solution

The fourth proportional to 12,628,781.15, 18,940,275.77 and 3,531,518.06 is: 5,296,467.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628,781.15 : 18,940,275.77 = 3,531,518.06 : x
  2. Step 2: Convert to fraction form
    12,628,781.15/18,940,275.77 = 3,531,518.06/x
  3. Step 3: Cross multiply
    12,628,781.15x = 18,940,275.77 × 3,531,518.06
  4. Step 4: Simplify right side
    12,628,781.15x = 66,887,925,830,776.45
  5. Step 5: Solve for x
    x = 66,887,925,830,776.45/12,628,781.15
  6. Step 6: Final answer
    x = 5,296,467.26

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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.