Home / 309,577,871.53-427,204,568.87-168,449,646.16

Finding the Fourth Proportional to 309,577,871.53, 427,204,568.87 and 168,449,646.16

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Solution

The fourth proportional to 309,577,871.53, 427,204,568.87 and 168,449,646.16 is: 232,453,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,577,871.53 : 427,204,568.87 = 168,449,646.16 : x
  2. Step 2: Convert to fraction form
    309,577,871.53/427,204,568.87 = 168,449,646.16/x
  3. Step 3: Cross multiply
    309,577,871.53x = 427,204,568.87 × 168,449,646.16
  4. Step 4: Simplify right side
    309,577,871.53x = 71,962,458,461,108,584
  5. Step 5: Solve for x
    x = 71,962,458,461,108,584/309,577,871.53
  6. Step 6: Final answer
    x = 232,453,495.81

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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.