Home / 431,302,618.35-646,295,606.51-256,080,604.41

Finding the Fourth Proportional to 431,302,618.35, 646,295,606.51 and 256,080,604.41

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Solution

The fourth proportional to 431,302,618.35, 646,295,606.51 and 256,080,604.41 is: 383,730,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,302,618.35 : 646,295,606.51 = 256,080,604.41 : x
  2. Step 2: Convert to fraction form
    431,302,618.35/646,295,606.51 = 256,080,604.41/x
  3. Step 3: Cross multiply
    431,302,618.35x = 646,295,606.51 × 256,080,604.41
  4. Step 4: Simplify right side
    431,302,618.35x = 165,503,769,541,327,936
  5. Step 5: Solve for x
    x = 165,503,769,541,327,936/431,302,618.35
  6. Step 6: Final answer
    x = 383,730,036.64

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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.