Home / 21,382,550.37-29,508,542.09-12,089,920.95

Finding the Fourth Proportional to 21,382,550.37, 29,508,542.09 and 12,089,920.95

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Solution

The fourth proportional to 21,382,550.37, 29,508,542.09 and 12,089,920.95 is: 16,684,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382,550.37 : 29,508,542.09 = 12,089,920.95 : x
  2. Step 2: Convert to fraction form
    21,382,550.37/29,508,542.09 = 12,089,920.95/x
  3. Step 3: Cross multiply
    21,382,550.37x = 29,508,542.09 × 12,089,920.95
  4. Step 4: Simplify right side
    21,382,550.37x = 356,755,941,157,398.19
  5. Step 5: Solve for x
    x = 356,755,941,157,398.19/21,382,550.37
  6. Step 6: Final answer
    x = 16,684,442.92

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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.