Home / 12,956,831.78-17,880,427.80-7,524,673.70

Finding the Fourth Proportional to 12,956,831.78, 17,880,427.80 and 7,524,673.70

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Solution

The fourth proportional to 12,956,831.78, 17,880,427.80 and 7,524,673.70 is: 10,384,049.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,831.78 : 17,880,427.80 = 7,524,673.70 : x
  2. Step 2: Convert to fraction form
    12,956,831.78/17,880,427.80 = 7,524,673.70/x
  3. Step 3: Cross multiply
    12,956,831.78x = 17,880,427.80 × 7,524,673.70
  4. Step 4: Simplify right side
    12,956,831.78x = 134,544,384,811,408.88
  5. Step 5: Solve for x
    x = 134,544,384,811,408.88/12,956,831.78
  6. Step 6: Final answer
    x = 10,384,049.67

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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.