Home / 209,981,121.60-314,971,682.40-133,054,708.80

Finding the Fourth Proportional to 209,981,121.60, 314,971,682.40 and 133,054,708.80

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Solution

The fourth proportional to 209,981,121.60, 314,971,682.40 and 133,054,708.80 is: 199,582,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,981,121.60 : 314,971,682.40 = 133,054,708.80 : x
  2. Step 2: Convert to fraction form
    209,981,121.60/314,971,682.40 = 133,054,708.80/x
  3. Step 3: Cross multiply
    209,981,121.60x = 314,971,682.40 × 133,054,708.80
  4. Step 4: Simplify right side
    209,981,121.60x = 41,908,465,481,978,080
  5. Step 5: Solve for x
    x = 41,908,465,481,978,080/209,981,121.60
  6. Step 6: Final answer
    x = 199,582,063.20

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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.