Home / 312,166,462.83-430,683,665.13-178,108,072.88

Finding the Fourth Proportional to 312,166,462.83, 430,683,665.13 and 178,108,072.88

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Solution

The fourth proportional to 312,166,462.83, 430,683,665.13 and 178,108,072.88 is: 245,728,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,166,462.83 : 430,683,665.13 = 178,108,072.88 : x
  2. Step 2: Convert to fraction form
    312,166,462.83/430,683,665.13 = 178,108,072.88/x
  3. Step 3: Cross multiply
    312,166,462.83x = 430,683,665.13 × 178,108,072.88
  4. Step 4: Simplify right side
    312,166,462.83x = 76,708,237,615,046,128
  5. Step 5: Solve for x
    x = 76,708,237,615,046,128/312,166,462.83
  6. Step 6: Final answer
    x = 245,728,631.19

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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.