Home / 19,150,020.84-28,700,212.86-7,777,257.96

Finding the Fourth Proportional to 19,150,020.84, 28,700,212.86 and 7,777,257.96

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Solution

The fourth proportional to 19,150,020.84, 28,700,212.86 and 7,777,257.96 is: 11,655,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150,020.84 : 28,700,212.86 = 7,777,257.96 : x
  2. Step 2: Convert to fraction form
    19,150,020.84/28,700,212.86 = 7,777,257.96/x
  3. Step 3: Cross multiply
    19,150,020.84x = 28,700,212.86 × 7,777,257.96
  4. Step 4: Simplify right side
    19,150,020.84x = 223,208,958,919,129.38
  5. Step 5: Solve for x
    x = 223,208,958,919,129.38/19,150,020.84
  6. Step 6: Final answer
    x = 11,655,807.62

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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.