Home / 280,040,107.84-386,445,218.43-154,589,609.32

Finding the Fourth Proportional to 280,040,107.84, 386,445,218.43 and 154,589,609.32

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Solution

The fourth proportional to 280,040,107.84, 386,445,218.43 and 154,589,609.32 is: 213,328,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,107.84 : 386,445,218.43 = 154,589,609.32 : x
  2. Step 2: Convert to fraction form
    280,040,107.84/386,445,218.43 = 154,589,609.32/x
  3. Step 3: Cross multiply
    280,040,107.84x = 386,445,218.43 × 154,589,609.32
  4. Step 4: Simplify right side
    280,040,107.84x = 59,740,415,340,675,760
  5. Step 5: Solve for x
    x = 59,740,415,340,675,760/280,040,107.84
  6. Step 6: Final answer
    x = 213,328,068.62

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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.