Home / 7,776,143.80-11,658,686.10-2,981,980.60

Finding the Fourth Proportional to 7,776,143.80, 11,658,686.10 and 2,981,980.60

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Solution

The fourth proportional to 7,776,143.80, 11,658,686.10 and 2,981,980.60 is: 4,470,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,143.80 : 11,658,686.10 = 2,981,980.60 : x
  2. Step 2: Convert to fraction form
    7,776,143.80/11,658,686.10 = 2,981,980.60/x
  3. Step 3: Cross multiply
    7,776,143.80x = 11,658,686.10 × 2,981,980.60
  4. Step 4: Simplify right side
    7,776,143.80x = 34,765,975,771,689.66
  5. Step 5: Solve for x
    x = 34,765,975,771,689.66/7,776,143.80
  6. Step 6: Final answer
    x = 4,470,850.42

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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.