Home / 281,926,516.40-422,889,774.60-205,399,012.40

Finding the Fourth Proportional to 281,926,516.40, 422,889,774.60 and 205,399,012.40

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Solution

The fourth proportional to 281,926,516.40, 422,889,774.60 and 205,399,012.40 is: 308,098,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,926,516.40 : 422,889,774.60 = 205,399,012.40 : x
  2. Step 2: Convert to fraction form
    281,926,516.40/422,889,774.60 = 205,399,012.40/x
  3. Step 3: Cross multiply
    281,926,516.40x = 422,889,774.60 × 205,399,012.40
  4. Step 4: Simplify right side
    281,926,516.40x = 86,861,142,056,898,608
  5. Step 5: Solve for x
    x = 86,861,142,056,898,608/281,926,516.40
  6. Step 6: Final answer
    x = 308,098,518.60

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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.