Home / 12,180,831.39-16,809,327.75-7,222,609.89

Finding the Fourth Proportional to 12,180,831.39, 16,809,327.75 and 7,222,609.89

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Solution

The fourth proportional to 12,180,831.39, 16,809,327.75 and 7,222,609.89 is: 9,967,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180,831.39 : 16,809,327.75 = 7,222,609.89 : x
  2. Step 2: Convert to fraction form
    12,180,831.39/16,809,327.75 = 7,222,609.89/x
  3. Step 3: Cross multiply
    12,180,831.39x = 16,809,327.75 × 7,222,609.89
  4. Step 4: Simplify right side
    12,180,831.39x = 121,407,216,851,401.44
  5. Step 5: Solve for x
    x = 121,407,216,851,401.44/12,180,831.39
  6. Step 6: Final answer
    x = 9,967,071.46

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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.