Home / 312,038,436.32-430,405,699.44-200,670,080.48

Finding the Fourth Proportional to 312,038,436.32, 430,405,699.44 and 200,670,080.48

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Solution

The fourth proportional to 312,038,436.32, 430,405,699.44 and 200,670,080.48 is: 276,791,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,038,436.32 : 430,405,699.44 = 200,670,080.48 : x
  2. Step 2: Convert to fraction form
    312,038,436.32/430,405,699.44 = 200,670,080.48/x
  3. Step 3: Cross multiply
    312,038,436.32x = 430,405,699.44 × 200,670,080.48
  4. Step 4: Simplify right side
    312,038,436.32x = 86,369,546,345,675,488
  5. Step 5: Solve for x
    x = 86,369,546,345,675,488/312,038,436.32
  6. Step 6: Final answer
    x = 276,791,370.21

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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.