Home / 12,816,801,918.72-19,190,758,502.88-8,133,318,673.92

Finding the Fourth Proportional to 12,816,801,918.72, 19,190,758,502.88 and 8,133,318,673.92

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Solution

The fourth proportional to 12,816,801,918.72, 19,190,758,502.88 and 8,133,318,673.92 is: 12,178,120,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816,801,918.72 : 19,190,758,502.88 = 8,133,318,673.92 : x
  2. Step 2: Convert to fraction form
    12,816,801,918.72/19,190,758,502.88 = 8,133,318,673.92/x
  3. Step 3: Cross multiply
    12,816,801,918.72x = 19,190,758,502.88 × 8,133,318,673.92
  4. Step 4: Simplify right side
    12,816,801,918.72x = 156,084,554,498,162,950,144
  5. Step 5: Solve for x
    x = 156,084,554,498,162,950,144/12,816,801,918.72
  6. Step 6: Final answer
    x = 12,178,120,211.89

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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.