Home / 18,517,430.71-25,562,915.32-12,332,769.67

Finding the Fourth Proportional to 18,517,430.71, 25,562,915.32 and 12,332,769.67

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Solution

The fourth proportional to 18,517,430.71, 25,562,915.32 and 12,332,769.67 is: 17,025,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,430.71 : 25,562,915.32 = 12,332,769.67 : x
  2. Step 2: Convert to fraction form
    18,517,430.71/25,562,915.32 = 12,332,769.67/x
  3. Step 3: Cross multiply
    18,517,430.71x = 25,562,915.32 × 12,332,769.67
  4. Step 4: Simplify right side
    18,517,430.71x = 315,261,546,607,459.75
  5. Step 5: Solve for x
    x = 315,261,546,607,459.75/18,517,430.71
  6. Step 6: Final answer
    x = 17,025,123.61

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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.