Home / 338,936,669.60-508,405,004.40-262,314,687.20

Finding the Fourth Proportional to 338,936,669.60, 508,405,004.40 and 262,314,687.20

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Solution

The fourth proportional to 338,936,669.60, 508,405,004.40 and 262,314,687.20 is: 393,472,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,936,669.60 : 508,405,004.40 = 262,314,687.20 : x
  2. Step 2: Convert to fraction form
    338,936,669.60/508,405,004.40 = 262,314,687.20/x
  3. Step 3: Cross multiply
    338,936,669.60x = 508,405,004.40 × 262,314,687.20
  4. Step 4: Simplify right side
    338,936,669.60x = 133,362,099,700,100,608
  5. Step 5: Solve for x
    x = 133,362,099,700,100,608/338,936,669.60
  6. Step 6: Final answer
    x = 393,472,030.80

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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.