Home / 12,705,588.72-19,061,940.60-5,137,868.88

Finding the Fourth Proportional to 12,705,588.72, 19,061,940.60 and 5,137,868.88

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Solution

The fourth proportional to 12,705,588.72, 19,061,940.60 and 5,137,868.88 is: 7,708,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705,588.72 : 19,061,940.60 = 5,137,868.88 : x
  2. Step 2: Convert to fraction form
    12,705,588.72/19,061,940.60 = 5,137,868.88/x
  3. Step 3: Cross multiply
    12,705,588.72x = 19,061,940.60 × 5,137,868.88
  4. Step 4: Simplify right side
    12,705,588.72x = 97,937,751,401,148.53
  5. Step 5: Solve for x
    x = 97,937,751,401,148.53/12,705,588.72
  6. Step 6: Final answer
    x = 7,708,241.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.