Home / 279,936,671.60-419,905,007.40-136,609,439.60

Finding the Fourth Proportional to 279,936,671.60, 419,905,007.40 and 136,609,439.60

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Solution

The fourth proportional to 279,936,671.60, 419,905,007.40 and 136,609,439.60 is: 204,914,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,671.60 : 419,905,007.40 = 136,609,439.60 : x
  2. Step 2: Convert to fraction form
    279,936,671.60/419,905,007.40 = 136,609,439.60/x
  3. Step 3: Cross multiply
    279,936,671.60x = 419,905,007.40 × 136,609,439.60
  4. Step 4: Simplify right side
    279,936,671.60x = 57,362,987,746,147,848
  5. Step 5: Solve for x
    x = 57,362,987,746,147,848/279,936,671.60
  6. Step 6: Final answer
    x = 204,914,159.40

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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.