Home / 11,702,972.40-16,143,040-7,729,267.92

Finding the Fourth Proportional to 11,702,972.40, 16,143,040 and 7,729,267.92

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Solution

The fourth proportional to 11,702,972.40, 16,143,040 and 7,729,267.92 is: 10,661,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702,972.40 : 16,143,040 = 7,729,267.92 : x
  2. Step 2: Convert to fraction form
    11,702,972.40/16,143,040 = 7,729,267.92/x
  3. Step 3: Cross multiply
    11,702,972.40x = 16,143,040 × 7,729,267.92
  4. Step 4: Simplify right side
    11,702,972.40x = 124,773,881,203,276.80
  5. Step 5: Solve for x
    x = 124,773,881,203,276.80/11,702,972.40
  6. Step 6: Final answer
    x = 10,661,725.67

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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.