Home / 7,776,138.80-11,658,678.60-2,981,975.60

Finding the Fourth Proportional to 7,776,138.80, 11,658,678.60 and 2,981,975.60

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Solution

The fourth proportional to 7,776,138.80, 11,658,678.60 and 2,981,975.60 is: 4,470,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,138.80 : 11,658,678.60 = 2,981,975.60 : x
  2. Step 2: Convert to fraction form
    7,776,138.80/11,658,678.60 = 2,981,975.60/x
  3. Step 3: Cross multiply
    7,776,138.80x = 11,658,678.60 × 2,981,975.60
  4. Step 4: Simplify right side
    7,776,138.80x = 34,765,895,113,442.16
  5. Step 5: Solve for x
    x = 34,765,895,113,442.16/7,776,138.80
  6. Step 6: Final answer
    x = 4,470,842.92

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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.