Home / 309,949,742.62-427,730,606.44-170,720,504.41

Finding the Fourth Proportional to 309,949,742.62, 427,730,606.44 and 170,720,504.41

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Solution

The fourth proportional to 309,949,742.62, 427,730,606.44 and 170,720,504.41 is: 235,594,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,949,742.62 : 427,730,606.44 = 170,720,504.41 : x
  2. Step 2: Convert to fraction form
    309,949,742.62/427,730,606.44 = 170,720,504.41/x
  3. Step 3: Cross multiply
    309,949,742.62x = 427,730,606.44 × 170,720,504.41
  4. Step 4: Simplify right side
    309,949,742.62x = 73,022,384,880,039,744
  5. Step 5: Solve for x
    x = 73,022,384,880,039,744/309,949,742.62
  6. Step 6: Final answer
    x = 235,594,274.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.