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Finding the Fourth Proportional to 428,149,342.20, 600,618,402.60 and 428,149,342.20

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Solution

The fourth proportional to 428,149,342.20, 600,618,402.60 and 428,149,342.20 is: 600,618,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,149,342.20 : 600,618,402.60 = 428,149,342.20 : x
  2. Step 2: Convert to fraction form
    428,149,342.20/600,618,402.60 = 428,149,342.20/x
  3. Step 3: Cross multiply
    428,149,342.20x = 600,618,402.60 × 428,149,342.20
  4. Step 4: Simplify right side
    428,149,342.20x = 257,154,373,986,404,768
  5. Step 5: Solve for x
    x = 257,154,373,986,404,768/428,149,342.20
  6. Step 6: Final answer
    x = 600,618,402.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.