Home / 285,138,099.20-393,445,630.06-166,080,285.38

Finding the Fourth Proportional to 285,138,099.20, 393,445,630.06 and 166,080,285.38

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Solution

The fourth proportional to 285,138,099.20, 393,445,630.06 and 166,080,285.38 is: 229,164,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,138,099.20 : 393,445,630.06 = 166,080,285.38 : x
  2. Step 2: Convert to fraction form
    285,138,099.20/393,445,630.06 = 166,080,285.38/x
  3. Step 3: Cross multiply
    285,138,099.20x = 393,445,630.06 × 166,080,285.38
  4. Step 4: Simplify right side
    285,138,099.20x = 65,343,562,521,878,704
  5. Step 5: Solve for x
    x = 65,343,562,521,878,704/285,138,099.20
  6. Step 6: Final answer
    x = 229,164,614.29

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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.