Home / 77,328,771.30-115,990,532.55-19,821,606.30

Finding the Fourth Proportional to 77,328,771.30, 115,990,532.55 and 19,821,606.30

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Solution

The fourth proportional to 77,328,771.30, 115,990,532.55 and 19,821,606.30 is: 29,731,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,328,771.30 : 115,990,532.55 = 19,821,606.30 : x
  2. Step 2: Convert to fraction form
    77,328,771.30/115,990,532.55 = 19,821,606.30/x
  3. Step 3: Cross multiply
    77,328,771.30x = 115,990,532.55 × 19,821,606.30
  4. Step 4: Simplify right side
    77,328,771.30x = 2,299,118,670,733,435
  5. Step 5: Solve for x
    x = 2,299,118,670,733,435/77,328,771.30
  6. Step 6: Final answer
    x = 29,731,736.74

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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.