Home / 12,905,522.75-17,809,621.40-7,183,738.43

Finding the Fourth Proportional to 12,905,522.75, 17,809,621.40 and 7,183,738.43

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Solution

The fourth proportional to 12,905,522.75, 17,809,621.40 and 7,183,738.43 is: 9,913,559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,522.75 : 17,809,621.40 = 7,183,738.43 : x
  2. Step 2: Convert to fraction form
    12,905,522.75/17,809,621.40 = 7,183,738.43/x
  3. Step 3: Cross multiply
    12,905,522.75x = 17,809,621.40 × 7,183,738.43
  4. Step 4: Simplify right side
    12,905,522.75x = 127,939,661,674,930.39
  5. Step 5: Solve for x
    x = 127,939,661,674,930.39/12,905,522.75
  6. Step 6: Final answer
    x = 9,913,559.04

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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.