Home / 199,284,621.20-298,926,931.80-91,789,197.20

Finding the Fourth Proportional to 199,284,621.20, 298,926,931.80 and 91,789,197.20

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Solution

The fourth proportional to 199,284,621.20, 298,926,931.80 and 91,789,197.20 is: 137,683,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,284,621.20 : 298,926,931.80 = 91,789,197.20 : x
  2. Step 2: Convert to fraction form
    199,284,621.20/298,926,931.80 = 91,789,197.20/x
  3. Step 3: Cross multiply
    199,284,621.20x = 298,926,931.80 × 91,789,197.20
  4. Step 4: Simplify right side
    199,284,621.20x = 27,438,263,091,381,152
  5. Step 5: Solve for x
    x = 27,438,263,091,381,152/199,284,621.20
  6. Step 6: Final answer
    x = 137,683,795.80

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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.