Home / 354,295,137.40-531,442,706.10-198,689,212.60

Finding the Fourth Proportional to 354,295,137.40, 531,442,706.10 and 198,689,212.60

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Solution

The fourth proportional to 354,295,137.40, 531,442,706.10 and 198,689,212.60 is: 298,033,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,137.40 : 531,442,706.10 = 198,689,212.60 : x
  2. Step 2: Convert to fraction form
    354,295,137.40/531,442,706.10 = 198,689,212.60/x
  3. Step 3: Cross multiply
    354,295,137.40x = 531,442,706.10 × 198,689,212.60
  4. Step 4: Simplify right side
    354,295,137.40x = 105,591,932,817,022,224
  5. Step 5: Solve for x
    x = 105,591,932,817,022,224/354,295,137.40
  6. Step 6: Final answer
    x = 298,033,818.90

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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.