Home / 259,008,181.60-388,512,272.40-130,013,672.80

Finding the Fourth Proportional to 259,008,181.60, 388,512,272.40 and 130,013,672.80

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Solution

The fourth proportional to 259,008,181.60, 388,512,272.40 and 130,013,672.80 is: 195,020,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,008,181.60 : 388,512,272.40 = 130,013,672.80 : x
  2. Step 2: Convert to fraction form
    259,008,181.60/388,512,272.40 = 130,013,672.80/x
  3. Step 3: Cross multiply
    259,008,181.60x = 388,512,272.40 × 130,013,672.80
  4. Step 4: Simplify right side
    259,008,181.60x = 50,511,907,462,598,064
  5. Step 5: Solve for x
    x = 50,511,907,462,598,064/259,008,181.60
  6. Step 6: Final answer
    x = 195,020,509.20

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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.