Home / 257,090,586.88-385,585,665.32-82,166,698.58

Finding the Fourth Proportional to 257,090,586.88, 385,585,665.32 and 82,166,698.58

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Solution

The fourth proportional to 257,090,586.88, 385,585,665.32 and 82,166,698.58 is: 123,233,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,090,586.88 : 385,585,665.32 = 82,166,698.58 : x
  2. Step 2: Convert to fraction form
    257,090,586.88/385,585,665.32 = 82,166,698.58/x
  3. Step 3: Cross multiply
    257,090,586.88x = 385,585,665.32 × 82,166,698.58
  4. Step 4: Simplify right side
    257,090,586.88x = 31,682,301,139,117,196
  5. Step 5: Solve for x
    x = 31,682,301,139,117,196/257,090,586.88
  6. Step 6: Final answer
    x = 123,233,999.05

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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.