Home / 199,296,938.40-298,945,407.60-172,034,015.10

Finding the Fourth Proportional to 199,296,938.40, 298,945,407.60 and 172,034,015.10

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Solution

The fourth proportional to 199,296,938.40, 298,945,407.60 and 172,034,015.10 is: 258,051,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,296,938.40 : 298,945,407.60 = 172,034,015.10 : x
  2. Step 2: Convert to fraction form
    199,296,938.40/298,945,407.60 = 172,034,015.10/x
  3. Step 3: Cross multiply
    199,296,938.40x = 298,945,407.60 × 172,034,015.10
  4. Step 4: Simplify right side
    199,296,938.40x = 51,428,778,765,134,056
  5. Step 5: Solve for x
    x = 51,428,778,765,134,056/199,296,938.40
  6. Step 6: Final answer
    x = 258,051,022.65

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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.