Home / 212,242,241.44-292,907,643.51-128,617,694.02

Finding the Fourth Proportional to 212,242,241.44, 292,907,643.51 and 128,617,694.02

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Solution

The fourth proportional to 212,242,241.44, 292,907,643.51 and 128,617,694.02 is: 177,500,507.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,242,241.44 : 292,907,643.51 = 128,617,694.02 : x
  2. Step 2: Convert to fraction form
    212,242,241.44/292,907,643.51 = 128,617,694.02/x
  3. Step 3: Cross multiply
    212,242,241.44x = 292,907,643.51 × 128,617,694.02
  4. Step 4: Simplify right side
    212,242,241.44x = 37,673,105,669,088,416
  5. Step 5: Solve for x
    x = 37,673,105,669,088,416/212,242,241.44
  6. Step 6: Final answer
    x = 177,500,507.97

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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.