Home / 139,968,705.20-209,953,057.80-137,701,223.60

Finding the Fourth Proportional to 139,968,705.20, 209,953,057.80 and 137,701,223.60

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Solution

The fourth proportional to 139,968,705.20, 209,953,057.80 and 137,701,223.60 is: 206,551,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,705.20 : 209,953,057.80 = 137,701,223.60 : x
  2. Step 2: Convert to fraction form
    139,968,705.20/209,953,057.80 = 137,701,223.60/x
  3. Step 3: Cross multiply
    139,968,705.20x = 209,953,057.80 × 137,701,223.60
  4. Step 4: Simplify right side
    139,968,705.20x = 28,910,792,957,621,524
  5. Step 5: Solve for x
    x = 28,910,792,957,621,524/139,968,705.20
  6. Step 6: Final answer
    x = 206,551,835.40

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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.