Home / 21,457,968.42-29,611,095.03-12,166,163.58

Finding the Fourth Proportional to 21,457,968.42, 29,611,095.03 and 12,166,163.58

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Solution

The fourth proportional to 21,457,968.42, 29,611,095.03 and 12,166,163.58 is: 16,788,794.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,968.42 : 29,611,095.03 = 12,166,163.58 : x
  2. Step 2: Convert to fraction form
    21,457,968.42/29,611,095.03 = 12,166,163.58/x
  3. Step 3: Cross multiply
    21,457,968.42x = 29,611,095.03 × 12,166,163.58
  4. Step 4: Simplify right side
    21,457,968.42x = 360,253,425,917,905
  5. Step 5: Solve for x
    x = 360,253,425,917,905/21,457,968.42
  6. Step 6: Final answer
    x = 16,788,794.67

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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.