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Finding the Fourth Proportional to 608,458,472.64, 839,406,004.29 and 357,449,589.54

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Solution

The fourth proportional to 608,458,472.64, 839,406,004.29 and 357,449,589.54 is: 493,123,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,458,472.64 : 839,406,004.29 = 357,449,589.54 : x
  2. Step 2: Convert to fraction form
    608,458,472.64/839,406,004.29 = 357,449,589.54/x
  3. Step 3: Cross multiply
    608,458,472.64x = 839,406,004.29 × 357,449,589.54
  4. Step 4: Simplify right side
    608,458,472.64x = 300,045,331,690,872,000
  5. Step 5: Solve for x
    x = 300,045,331,690,872,000/608,458,472.64
  6. Step 6: Final answer
    x = 493,123,763.05

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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.