Home / 217,474,090.79-325,780,666.81-190,211,167.49

Finding the Fourth Proportional to 217,474,090.79, 325,780,666.81 and 190,211,167.49

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Solution

The fourth proportional to 217,474,090.79, 325,780,666.81 and 190,211,167.49 is: 284,940,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,474,090.79 : 325,780,666.81 = 190,211,167.49 : x
  2. Step 2: Convert to fraction form
    217,474,090.79/325,780,666.81 = 190,211,167.49/x
  3. Step 3: Cross multiply
    217,474,090.79x = 325,780,666.81 × 190,211,167.49
  4. Step 4: Simplify right side
    217,474,090.79x = 61,967,120,977,496,368
  5. Step 5: Solve for x
    x = 61,967,120,977,496,368/217,474,090.79
  6. Step 6: Final answer
    x = 284,940,246.23

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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.