Home / 139,969,403.20-209,954,104.80-133,922,785.60

Finding the Fourth Proportional to 139,969,403.20, 209,954,104.80 and 133,922,785.60

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Solution

The fourth proportional to 139,969,403.20, 209,954,104.80 and 133,922,785.60 is: 200,884,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,403.20 : 209,954,104.80 = 133,922,785.60 : x
  2. Step 2: Convert to fraction form
    139,969,403.20/209,954,104.80 = 133,922,785.60/x
  3. Step 3: Cross multiply
    139,969,403.20x = 209,954,104.80 × 133,922,785.60
  4. Step 4: Simplify right side
    139,969,403.20x = 28,117,638,562,970,332
  5. Step 5: Solve for x
    x = 28,117,638,562,970,332/139,969,403.20
  6. Step 6: Final answer
    x = 200,884,178.40

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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.