Home / 139,968,000.20-209,952,000.30-71,093,246.60

Finding the Fourth Proportional to 139,968,000.20, 209,952,000.30 and 71,093,246.60

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Solution

The fourth proportional to 139,968,000.20, 209,952,000.30 and 71,093,246.60 is: 106,639,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,000.20 : 209,952,000.30 = 71,093,246.60 : x
  2. Step 2: Convert to fraction form
    139,968,000.20/209,952,000.30 = 71,093,246.60/x
  3. Step 3: Cross multiply
    139,968,000.20x = 209,952,000.30 × 71,093,246.60
  4. Step 4: Simplify right side
    139,968,000.20x = 14,926,169,331,491,174
  5. Step 5: Solve for x
    x = 14,926,169,331,491,174/139,968,000.20
  6. Step 6: Final answer
    x = 106,639,869.90

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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.