Home / 21,122,067,946.86-29,119,327,845.75-16,849,781,787.42

Finding the Fourth Proportional to 21,122,067,946.86, 29,119,327,845.75 and 16,849,781,787.42

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Solution

The fourth proportional to 21,122,067,946.86, 29,119,327,845.75 and 16,849,781,787.42 is: 23,229,464,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,122,067,946.86 : 29,119,327,845.75 = 16,849,781,787.42 : x
  2. Step 2: Convert to fraction form
    21,122,067,946.86/29,119,327,845.75 = 16,849,781,787.42/x
  3. Step 3: Cross multiply
    21,122,067,946.86x = 29,119,327,845.75 × 16,849,781,787.42
  4. Step 4: Simplify right side
    21,122,067,946.86x = 490,654,319,997,230,383,104
  5. Step 5: Solve for x
    x = 490,654,319,997,230,383,104/21,122,067,946.86
  6. Step 6: Final answer
    x = 23,229,464,142.98

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1.5x scale

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.