Home / 312,036,499.26-430,403,025.60-200,668,138.48

Finding the Fourth Proportional to 312,036,499.26, 430,403,025.60 and 200,668,138.48

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Solution

The fourth proportional to 312,036,499.26, 430,403,025.60 and 200,668,138.48 is: 276,788,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,036,499.26 : 430,403,025.60 = 200,668,138.48 : x
  2. Step 2: Convert to fraction form
    312,036,499.26/430,403,025.60 = 200,668,138.48/x
  3. Step 3: Cross multiply
    312,036,499.26x = 430,403,025.60 × 200,668,138.48
  4. Step 4: Simplify right side
    312,036,499.26x = 86,368,173,943,311,792
  5. Step 5: Solve for x
    x = 86,368,173,943,311,792/312,036,499.26
  6. Step 6: Final answer
    x = 276,788,690.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.