Home / 199,284,511.20-298,926,766.80-91,789,087.20

Finding the Fourth Proportional to 199,284,511.20, 298,926,766.80 and 91,789,087.20

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Solution

The fourth proportional to 199,284,511.20, 298,926,766.80 and 91,789,087.20 is: 137,683,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,284,511.20 : 298,926,766.80 = 91,789,087.20 : x
  2. Step 2: Convert to fraction form
    199,284,511.20/298,926,766.80 = 91,789,087.20/x
  3. Step 3: Cross multiply
    199,284,511.20x = 298,926,766.80 × 91,789,087.20
  4. Step 4: Simplify right side
    199,284,511.20x = 27,438,215,064,219,268
  5. Step 5: Solve for x
    x = 27,438,215,064,219,268/199,284,511.20
  6. Step 6: Final answer
    x = 137,683,630.80

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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.