Home / 12,745,795.84-19,100,147.98-7,877,708.80

Finding the Fourth Proportional to 12,745,795.84, 19,100,147.98 and 7,877,708.80

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Solution

The fourth proportional to 12,745,795.84, 19,100,147.98 and 7,877,708.80 is: 11,805,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,795.84 : 19,100,147.98 = 7,877,708.80 : x
  2. Step 2: Convert to fraction form
    12,745,795.84/19,100,147.98 = 7,877,708.80/x
  3. Step 3: Cross multiply
    12,745,795.84x = 19,100,147.98 × 7,877,708.80
  4. Step 4: Simplify right side
    12,745,795.84x = 150,465,403,823,348.22
  5. Step 5: Solve for x
    x = 150,465,403,823,348.22/12,745,795.84
  6. Step 6: Final answer
    x = 11,805,100.73

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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.