Home / 431,208,922.40-646,813,383.60-329,172,250.40

Finding the Fourth Proportional to 431,208,922.40, 646,813,383.60 and 329,172,250.40

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Solution

The fourth proportional to 431,208,922.40, 646,813,383.60 and 329,172,250.40 is: 493,758,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,208,922.40 : 646,813,383.60 = 329,172,250.40 : x
  2. Step 2: Convert to fraction form
    431,208,922.40/646,813,383.60 = 329,172,250.40/x
  3. Step 3: Cross multiply
    431,208,922.40x = 646,813,383.60 × 329,172,250.40
  4. Step 4: Simplify right side
    431,208,922.40x = 212,913,017,068,450,432
  5. Step 5: Solve for x
    x = 212,913,017,068,450,432/431,208,922.40
  6. Step 6: Final answer
    x = 493,758,375.60

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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.