Home / 12,811,709.10-17,679,630.87-7,657,912.38

Finding the Fourth Proportional to 12,811,709.10, 17,679,630.87 and 7,657,912.38

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Solution

The fourth proportional to 12,811,709.10, 17,679,630.87 and 7,657,912.38 is: 10,567,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,709.10 : 17,679,630.87 = 7,657,912.38 : x
  2. Step 2: Convert to fraction form
    12,811,709.10/17,679,630.87 = 7,657,912.38/x
  3. Step 3: Cross multiply
    12,811,709.10x = 17,679,630.87 × 7,657,912.38
  4. Step 4: Simplify right side
    12,811,709.10x = 135,389,064,113,203.17
  5. Step 5: Solve for x
    x = 135,389,064,113,203.17/12,811,709.10
  6. Step 6: Final answer
    x = 10,567,603.67

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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.