Home / 261,199,287.64-360,444,209.96-142,122,369.98

Finding the Fourth Proportional to 261,199,287.64, 360,444,209.96 and 142,122,369.98

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Solution

The fourth proportional to 261,199,287.64, 360,444,209.96 and 142,122,369.98 is: 196,122,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,199,287.64 : 360,444,209.96 = 142,122,369.98 : x
  2. Step 2: Convert to fraction form
    261,199,287.64/360,444,209.96 = 142,122,369.98/x
  3. Step 3: Cross multiply
    261,199,287.64x = 360,444,209.96 × 142,122,369.98
  4. Step 4: Simplify right side
    261,199,287.64x = 51,227,185,365,083,912
  5. Step 5: Solve for x
    x = 51,227,185,365,083,912/261,199,287.64
  6. Step 6: Final answer
    x = 196,122,990.33

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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.