Home / 464,268,959.85-640,691,142.95-255,420,618.47

Finding the Fourth Proportional to 464,268,959.85, 640,691,142.95 and 255,420,618.47

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Solution

The fourth proportional to 464,268,959.85, 640,691,142.95 and 255,420,618.47 is: 352,480,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,268,959.85 : 640,691,142.95 = 255,420,618.47 : x
  2. Step 2: Convert to fraction form
    464,268,959.85/640,691,142.95 = 255,420,618.47/x
  3. Step 3: Cross multiply
    464,268,959.85x = 640,691,142.95 × 255,420,618.47
  4. Step 4: Simplify right side
    464,268,959.85x = 163,645,727,978,937,280
  5. Step 5: Solve for x
    x = 163,645,727,978,937,280/464,268,959.85
  6. Step 6: Final answer
    x = 352,480,441.58

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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.