Home / 431,302,564.35-646,295,526.05-256,080,550.68

Finding the Fourth Proportional to 431,302,564.35, 646,295,526.05 and 256,080,550.68

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Solution

The fourth proportional to 431,302,564.35, 646,295,526.05 and 256,080,550.68 is: 383,729,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,302,564.35 : 646,295,526.05 = 256,080,550.68 : x
  2. Step 2: Convert to fraction form
    431,302,564.35/646,295,526.05 = 256,080,550.68/x
  3. Step 3: Cross multiply
    431,302,564.35x = 646,295,526.05 × 256,080,550.68
  4. Step 4: Simplify right side
    431,302,564.35x = 165,503,714,211,623,872
  5. Step 5: Solve for x
    x = 165,503,714,211,623,872/431,302,564.35
  6. Step 6: Final answer
    x = 383,729,956.40

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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.