Home / 12,145,544,936.20-18,218,317,404.30-9,696,664,808.20

Finding the Fourth Proportional to 12,145,544,936.20, 18,218,317,404.30 and 9,696,664,808.20

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Solution

The fourth proportional to 12,145,544,936.20, 18,218,317,404.30 and 9,696,664,808.20 is: 14,544,997,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,544,936.20 : 18,218,317,404.30 = 9,696,664,808.20 : x
  2. Step 2: Convert to fraction form
    12,145,544,936.20/18,218,317,404.30 = 9,696,664,808.20/x
  3. Step 3: Cross multiply
    12,145,544,936.20x = 18,218,317,404.30 × 9,696,664,808.20
  4. Step 4: Simplify right side
    12,145,544,936.20x = 176,656,917,238,893,379,584
  5. Step 5: Solve for x
    x = 176,656,917,238,893,379,584/12,145,544,936.20
  6. Step 6: Final answer
    x = 14,544,997,212.30

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1.5x scale

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.