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Finding the Fourth Proportional to 47,389,878, 71,084,817 and 11,488,086

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Solution

The fourth proportional to 47,389,878, 71,084,817 and 11,488,086 is: 17,232,129

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,389,878 : 71,084,817 = 11,488,086 : x
  2. Step 2: Convert to fraction form
    47,389,878/71,084,817 = 11,488,086/x
  3. Step 3: Cross multiply
    47,389,878x = 71,084,817 × 11,488,086
  4. Step 4: Simplify right side
    47,389,878x = 816,628,490,990,262
  5. Step 5: Solve for x
    x = 816,628,490,990,262/47,389,878
  6. Step 6: Final answer
    x = 17,232,129

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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.