Home / 281,926,510.40-422,889,765.60-205,399,006.40

Finding the Fourth Proportional to 281,926,510.40, 422,889,765.60 and 205,399,006.40

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Solution

The fourth proportional to 281,926,510.40, 422,889,765.60 and 205,399,006.40 is: 308,098,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,926,510.40 : 422,889,765.60 = 205,399,006.40 : x
  2. Step 2: Convert to fraction form
    281,926,510.40/422,889,765.60 = 205,399,006.40/x
  3. Step 3: Cross multiply
    281,926,510.40x = 422,889,765.60 × 205,399,006.40
  4. Step 4: Simplify right side
    281,926,510.40x = 86,861,137,670,968,912
  5. Step 5: Solve for x
    x = 86,861,137,670,968,912/281,926,510.40
  6. Step 6: Final answer
    x = 308,098,509.60

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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.