Home / 211,743,823.14-317,615,984.39-66,178,147.43

Finding the Fourth Proportional to 211,743,823.14, 317,615,984.39 and 66,178,147.43

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Solution

The fourth proportional to 211,743,823.14, 317,615,984.39 and 66,178,147.43 is: 99,267,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,743,823.14 : 317,615,984.39 = 66,178,147.43 : x
  2. Step 2: Convert to fraction form
    211,743,823.14/317,615,984.39 = 66,178,147.43/x
  3. Step 3: Cross multiply
    211,743,823.14x = 317,615,984.39 × 66,178,147.43
  4. Step 4: Simplify right side
    211,743,823.14x = 21,019,237,442,045,480
  5. Step 5: Solve for x
    x = 21,019,237,442,045,480/211,743,823.14
  6. Step 6: Final answer
    x = 99,267,299.18

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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.