Home / 879,370,015.77-1,319,097,446.79-289,147,188.27

Finding the Fourth Proportional to 879,370,015.77, 1,319,097,446.79 and 289,147,188.27

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Solution

The fourth proportional to 879,370,015.77, 1,319,097,446.79 and 289,147,188.27 is: 433,734,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,370,015.77 : 1,319,097,446.79 = 289,147,188.27 : x
  2. Step 2: Convert to fraction form
    879,370,015.77/1,319,097,446.79 = 289,147,188.27/x
  3. Step 3: Cross multiply
    879,370,015.77x = 1,319,097,446.79 × 289,147,188.27
  4. Step 4: Simplify right side
    879,370,015.77x = 381,413,317,790,166,656
  5. Step 5: Solve for x
    x = 381,413,317,790,166,656/879,370,015.77
  6. Step 6: Final answer
    x = 433,734,731.63

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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.