Home / 114,954,669-158,637,443.22-78,349,187.88

Finding the Fourth Proportional to 114,954,669, 158,637,443.22 and 78,349,187.88

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Solution

The fourth proportional to 114,954,669, 158,637,443.22 and 78,349,187.88 is: 108,121,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,954,669 : 158,637,443.22 = 78,349,187.88 : x
  2. Step 2: Convert to fraction form
    114,954,669/158,637,443.22 = 78,349,187.88/x
  3. Step 3: Cross multiply
    114,954,669x = 158,637,443.22 × 78,349,187.88
  4. Step 4: Simplify right side
    114,954,669x = 12,429,114,843,646,612
  5. Step 5: Solve for x
    x = 12,429,114,843,646,612/114,954,669
  6. Step 6: Final answer
    x = 108,121,879.27

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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.