Home / 464,268,987.95-640,691,181.81-255,420,646.56

Finding the Fourth Proportional to 464,268,987.95, 640,691,181.81 and 255,420,646.56

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Solution

The fourth proportional to 464,268,987.95, 640,691,181.81 and 255,420,646.56 is: 352,480,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,268,987.95 : 640,691,181.81 = 255,420,646.56 : x
  2. Step 2: Convert to fraction form
    464,268,987.95/640,691,181.81 = 255,420,646.56/x
  3. Step 3: Cross multiply
    464,268,987.95x = 640,691,181.81 × 255,420,646.56
  4. Step 4: Simplify right side
    464,268,987.95x = 163,645,755,903,200,704
  5. Step 5: Solve for x
    x = 163,645,755,903,200,704/464,268,987.95
  6. Step 6: Final answer
    x = 352,480,480.39

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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.