Home / 13,631,842.79-18,811,995.90-7,437,028.67

Finding the Fourth Proportional to 13,631,842.79, 18,811,995.90 and 7,437,028.67

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Solution

The fourth proportional to 13,631,842.79, 18,811,995.90 and 7,437,028.67 is: 10,263,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,842.79 : 18,811,995.90 = 7,437,028.67 : x
  2. Step 2: Convert to fraction form
    13,631,842.79/18,811,995.90 = 7,437,028.67/x
  3. Step 3: Cross multiply
    13,631,842.79x = 18,811,995.90 × 7,437,028.67
  4. Step 4: Simplify right side
    13,631,842.79x = 139,905,352,848,222.44
  5. Step 5: Solve for x
    x = 139,905,352,848,222.44/13,631,842.79
  6. Step 6: Final answer
    x = 10,263,128.40

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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.