Home / 19,200,478.07-28,800,744.75-7,840,926.70

Finding the Fourth Proportional to 19,200,478.07, 28,800,744.75 and 7,840,926.70

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Solution

The fourth proportional to 19,200,478.07, 28,800,744.75 and 7,840,926.70 is: 11,761,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,478.07 : 28,800,744.75 = 7,840,926.70 : x
  2. Step 2: Convert to fraction form
    19,200,478.07/28,800,744.75 = 7,840,926.70/x
  3. Step 3: Cross multiply
    19,200,478.07x = 28,800,744.75 × 7,840,926.70
  4. Step 4: Simplify right side
    19,200,478.07x = 225,824,528,418,157.97
  5. Step 5: Solve for x
    x = 225,824,528,418,157.97/19,200,478.07
  6. Step 6: Final answer
    x = 11,761,401.33

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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.