Home / 191,288,928.74-263,912,658.84-115,959,409.16

Finding the Fourth Proportional to 191,288,928.74, 263,912,658.84 and 115,959,409.16

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Solution

The fourth proportional to 191,288,928.74, 263,912,658.84 and 115,959,409.16 is: 159,983,937.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,288,928.74 : 263,912,658.84 = 115,959,409.16 : x
  2. Step 2: Convert to fraction form
    191,288,928.74/263,912,658.84 = 115,959,409.16/x
  3. Step 3: Cross multiply
    191,288,928.74x = 263,912,658.84 × 115,959,409.16
  4. Step 4: Simplify right side
    191,288,928.74x = 30,603,155,987,611,488
  5. Step 5: Solve for x
    x = 30,603,155,987,611,488/191,288,928.74
  6. Step 6: Final answer
    x = 159,983,937.33

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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.