Home / 257,401,872.60-386,102,808.90-154,089,742.20

Finding the Fourth Proportional to 257,401,872.60, 386,102,808.90 and 154,089,742.20

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Solution

The fourth proportional to 257,401,872.60, 386,102,808.90 and 154,089,742.20 is: 231,134,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,401,872.60 : 386,102,808.90 = 154,089,742.20 : x
  2. Step 2: Convert to fraction form
    257,401,872.60/386,102,808.90 = 154,089,742.20/x
  3. Step 3: Cross multiply
    257,401,872.60x = 386,102,808.90 × 154,089,742.20
  4. Step 4: Simplify right side
    257,401,872.60x = 59,494,482,286,096,856
  5. Step 5: Solve for x
    x = 59,494,482,286,096,856/257,401,872.60
  6. Step 6: Final answer
    x = 231,134,613.30

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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.