Home / 258,691,485.16-388,037,244.66-206,632,347.49

Finding the Fourth Proportional to 258,691,485.16, 388,037,244.66 and 206,632,347.49

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Solution

The fourth proportional to 258,691,485.16, 388,037,244.66 and 206,632,347.49 is: 309,948,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,691,485.16 : 388,037,244.66 = 206,632,347.49 : x
  2. Step 2: Convert to fraction form
    258,691,485.16/388,037,244.66 = 206,632,347.49/x
  3. Step 3: Cross multiply
    258,691,485.16x = 388,037,244.66 × 206,632,347.49
  4. Step 4: Simplify right side
    258,691,485.16x = 80,181,046,776,440,064
  5. Step 5: Solve for x
    x = 80,181,046,776,440,064/258,691,485.16
  6. Step 6: Final answer
    x = 309,948,534.74

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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.