Home / 13,631,853.92-18,812,011.25-7,437,039.73

Finding the Fourth Proportional to 13,631,853.92, 18,812,011.25 and 7,437,039.73

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Solution

The fourth proportional to 13,631,853.92, 18,812,011.25 and 7,437,039.73 is: 10,263,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,853.92 : 18,812,011.25 = 7,437,039.73 : x
  2. Step 2: Convert to fraction form
    13,631,853.92/18,812,011.25 = 7,437,039.73/x
  3. Step 3: Cross multiply
    13,631,853.92x = 18,812,011.25 × 7,437,039.73
  4. Step 4: Simplify right side
    13,631,853.92x = 139,905,675,039,019.55
  5. Step 5: Solve for x
    x = 139,905,675,039,019.55/13,631,853.92
  6. Step 6: Final answer
    x = 10,263,143.66

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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.