Home / 768,194,081.36-1,152,340,636.48-270,143,497.52

Finding the Fourth Proportional to 768,194,081.36, 1,152,340,636.48 and 270,143,497.52

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Solution

The fourth proportional to 768,194,081.36, 1,152,340,636.48 and 270,143,497.52 is: 405,232,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,194,081.36 : 1,152,340,636.48 = 270,143,497.52 : x
  2. Step 2: Convert to fraction form
    768,194,081.36/1,152,340,636.48 = 270,143,497.52/x
  3. Step 3: Cross multiply
    768,194,081.36x = 1,152,340,636.48 × 270,143,497.52
  4. Step 4: Simplify right side
    768,194,081.36x = 311,297,329,873,130,112
  5. Step 5: Solve for x
    x = 311,297,329,873,130,112/768,194,081.36
  6. Step 6: Final answer
    x = 405,232,658.55

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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.