Home / 12,801,400.80-19,154,861.99-7,686,945.48

Finding the Fourth Proportional to 12,801,400.80, 19,154,861.99 and 7,686,945.48

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Solution

The fourth proportional to 12,801,400.80, 19,154,861.99 and 7,686,945.48 is: 11,502,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801,400.80 : 19,154,861.99 = 7,686,945.48 : x
  2. Step 2: Convert to fraction form
    12,801,400.80/19,154,861.99 = 7,686,945.48/x
  3. Step 3: Cross multiply
    12,801,400.80x = 19,154,861.99 × 7,686,945.48
  4. Step 4: Simplify right side
    12,801,400.80x = 147,242,379,755,619.59
  5. Step 5: Solve for x
    x = 147,242,379,755,619.59/12,801,400.80
  6. Step 6: Final answer
    x = 11,502,052.16

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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.