Home / 154,809,794.43-213,637,551.53-85,195,175.32

Finding the Fourth Proportional to 154,809,794.43, 213,637,551.53 and 85,195,175.32

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Solution

The fourth proportional to 154,809,794.43, 213,637,551.53 and 85,195,175.32 is: 117,569,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,809,794.43 : 213,637,551.53 = 85,195,175.32 : x
  2. Step 2: Convert to fraction form
    154,809,794.43/213,637,551.53 = 85,195,175.32/x
  3. Step 3: Cross multiply
    154,809,794.43x = 213,637,551.53 × 85,195,175.32
  4. Step 4: Simplify right side
    154,809,794.43x = 18,200,888,657,533,884
  5. Step 5: Solve for x
    x = 18,200,888,657,533,884/154,809,794.43
  6. Step 6: Final answer
    x = 117,569,361.32

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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.