Home / 257,401,905.60-386,102,858.40-154,089,775.20

Finding the Fourth Proportional to 257,401,905.60, 386,102,858.40 and 154,089,775.20

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Solution

The fourth proportional to 257,401,905.60, 386,102,858.40 and 154,089,775.20 is: 231,134,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,401,905.60 : 386,102,858.40 = 154,089,775.20 : x
  2. Step 2: Convert to fraction form
    257,401,905.60/386,102,858.40 = 154,089,775.20/x
  3. Step 3: Cross multiply
    257,401,905.60x = 386,102,858.40 × 154,089,775.20
  4. Step 4: Simplify right side
    257,401,905.60x = 59,494,502,654,933,424
  5. Step 5: Solve for x
    x = 59,494,502,654,933,424/257,401,905.60
  6. Step 6: Final answer
    x = 231,134,662.80

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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.