Home / 285,138,428.58-393,446,085.46-166,080,615.03

Finding the Fourth Proportional to 285,138,428.58, 393,446,085.46 and 166,080,615.03

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Solution

The fourth proportional to 285,138,428.58, 393,446,085.46 and 166,080,615.03 is: 229,165,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,138,428.58 : 393,446,085.46 = 166,080,615.03 : x
  2. Step 2: Convert to fraction form
    285,138,428.58/393,446,085.46 = 166,080,615.03/x
  3. Step 3: Cross multiply
    285,138,428.58x = 393,446,085.46 × 166,080,615.03
  4. Step 4: Simplify right side
    285,138,428.58x = 65,343,767,853,927,536
  5. Step 5: Solve for x
    x = 65,343,767,853,927,536/285,138,428.58
  6. Step 6: Final answer
    x = 229,165,069.68

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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.