Home / 19,942,404.20-29,892,611.10-7,807,178.60

Finding the Fourth Proportional to 19,942,404.20, 29,892,611.10 and 7,807,178.60

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Solution

The fourth proportional to 19,942,404.20, 29,892,611.10 and 7,807,178.60 is: 11,702,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942,404.20 : 29,892,611.10 = 7,807,178.60 : x
  2. Step 2: Convert to fraction form
    19,942,404.20/29,892,611.10 = 7,807,178.60/x
  3. Step 3: Cross multiply
    19,942,404.20x = 29,892,611.10 × 7,807,178.60
  4. Step 4: Simplify right side
    19,942,404.20x = 233,376,953,678,042.47
  5. Step 5: Solve for x
    x = 233,376,953,678,042.47/19,942,404.20
  6. Step 6: Final answer
    x = 11,702,548.57

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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.