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Finding the Fourth Proportional to 12,665,106, 18,997,659 and 5,573,394

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Solution

The fourth proportional to 12,665,106, 18,997,659 and 5,573,394 is: 8,360,091

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665,106 : 18,997,659 = 5,573,394 : x
  2. Step 2: Convert to fraction form
    12,665,106/18,997,659 = 5,573,394/x
  3. Step 3: Cross multiply
    12,665,106x = 18,997,659 × 5,573,394
  4. Step 4: Simplify right side
    12,665,106x = 105,881,438,684,646
  5. Step 5: Solve for x
    x = 105,881,438,684,646/12,665,106
  6. Step 6: Final answer
    x = 8,360,091

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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.