Home / 203,630,048.10-305,445,072.15-67,315,431.60

Finding the Fourth Proportional to 203,630,048.10, 305,445,072.15 and 67,315,431.60

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Solution

The fourth proportional to 203,630,048.10, 305,445,072.15 and 67,315,431.60 is: 100,973,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,630,048.10 : 305,445,072.15 = 67,315,431.60 : x
  2. Step 2: Convert to fraction form
    203,630,048.10/305,445,072.15 = 67,315,431.60/x
  3. Step 3: Cross multiply
    203,630,048.10x = 305,445,072.15 × 67,315,431.60
  4. Step 4: Simplify right side
    203,630,048.10x = 20,561,166,861,870,388
  5. Step 5: Solve for x
    x = 20,561,166,861,870,388/203,630,048.10
  6. Step 6: Final answer
    x = 100,973,147.40

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1.5x scale

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.