Home / 428,450,697.64-591,220,648.14-240,286,630.44

Finding the Fourth Proportional to 428,450,697.64, 591,220,648.14 and 240,286,630.44

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Solution

The fourth proportional to 428,450,697.64, 591,220,648.14 and 240,286,630.44 is: 331,572,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,450,697.64 : 591,220,648.14 = 240,286,630.44 : x
  2. Step 2: Convert to fraction form
    428,450,697.64/591,220,648.14 = 240,286,630.44/x
  3. Step 3: Cross multiply
    428,450,697.64x = 591,220,648.14 × 240,286,630.44
  4. Step 4: Simplify right side
    428,450,697.64x = 142,062,417,388,113,456
  5. Step 5: Solve for x
    x = 142,062,417,388,113,456/428,450,697.64
  6. Step 6: Final answer
    x = 331,572,379.67

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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.