Home / 338,936,643.60-508,404,965.40-262,314,661.20

Finding the Fourth Proportional to 338,936,643.60, 508,404,965.40 and 262,314,661.20

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Solution

The fourth proportional to 338,936,643.60, 508,404,965.40 and 262,314,661.20 is: 393,471,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,936,643.60 : 508,404,965.40 = 262,314,661.20 : x
  2. Step 2: Convert to fraction form
    338,936,643.60/508,404,965.40 = 262,314,661.20/x
  3. Step 3: Cross multiply
    338,936,643.60x = 508,404,965.40 × 262,314,661.20
  4. Step 4: Simplify right side
    338,936,643.60x = 133,362,076,251,298,704
  5. Step 5: Solve for x
    x = 133,362,076,251,298,704/338,936,643.60
  6. Step 6: Final answer
    x = 393,471,991.80

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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.