Home / 209,106,274.40-313,659,411.60-140,231,520.80

Finding the Fourth Proportional to 209,106,274.40, 313,659,411.60 and 140,231,520.80

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Solution

The fourth proportional to 209,106,274.40, 313,659,411.60 and 140,231,520.80 is: 210,347,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,106,274.40 : 313,659,411.60 = 140,231,520.80 : x
  2. Step 2: Convert to fraction form
    209,106,274.40/313,659,411.60 = 140,231,520.80/x
  3. Step 3: Cross multiply
    209,106,274.40x = 313,659,411.60 × 140,231,520.80
  4. Step 4: Simplify right side
    209,106,274.40x = 43,984,936,301,901,168
  5. Step 5: Solve for x
    x = 43,984,936,301,901,168/209,106,274.40
  6. Step 6: Final answer
    x = 210,347,281.20

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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.