Home / 12,710,725.20-19,066,087.80-11,777,605.20

Finding the Fourth Proportional to 12,710,725.20, 19,066,087.80 and 11,777,605.20

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Solution

The fourth proportional to 12,710,725.20, 19,066,087.80 and 11,777,605.20 is: 17,666,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710,725.20 : 19,066,087.80 = 11,777,605.20 : x
  2. Step 2: Convert to fraction form
    12,710,725.20/19,066,087.80 = 11,777,605.20/x
  3. Step 3: Cross multiply
    12,710,725.20x = 19,066,087.80 × 11,777,605.20
  4. Step 4: Simplify right side
    12,710,725.20x = 224,552,854,816,936.56
  5. Step 5: Solve for x
    x = 224,552,854,816,936.56/12,710,725.20
  6. Step 6: Final answer
    x = 17,666,407.80

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Similar ratio
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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.