Home / 257,090,600.97-385,585,686.72-82,166,712.80

Finding the Fourth Proportional to 257,090,600.97, 385,585,686.72 and 82,166,712.80

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Solution

The fourth proportional to 257,090,600.97, 385,585,686.72 and 82,166,712.80 is: 123,234,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,090,600.97 : 385,585,686.72 = 82,166,712.80 : x
  2. Step 2: Convert to fraction form
    257,090,600.97/385,585,686.72 = 82,166,712.80/x
  3. Step 3: Cross multiply
    257,090,600.97x = 385,585,686.72 × 82,166,712.80
  4. Step 4: Simplify right side
    257,090,600.97x = 31,682,308,378,585,088
  5. Step 5: Solve for x
    x = 31,682,308,378,585,088/257,090,600.97
  6. Step 6: Final answer
    x = 123,234,020.45

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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.