Home / 285,138,434.96-393,446,094.26-166,080,621.40

Finding the Fourth Proportional to 285,138,434.96, 393,446,094.26 and 166,080,621.40

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Solution

The fourth proportional to 285,138,434.96, 393,446,094.26 and 166,080,621.40 is: 229,165,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,138,434.96 : 393,446,094.26 = 166,080,621.40 : x
  2. Step 2: Convert to fraction form
    285,138,434.96/393,446,094.26 = 166,080,621.40/x
  3. Step 3: Cross multiply
    285,138,434.96x = 393,446,094.26 × 166,080,621.40
  4. Step 4: Simplify right side
    285,138,434.96x = 65,343,771,822,103,776
  5. Step 5: Solve for x
    x = 65,343,771,822,103,776/285,138,434.96
  6. Step 6: Final answer
    x = 229,165,078.47

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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.