Finding the Fourth Proportional to 395,449,615.20, 593,174,422.80 and 266,119,183.20
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Solution
The fourth proportional to 395,449,615.20, 593,174,422.80 and 266,119,183.20 is: 399,178,774.80
Step by Step Solution
- Step 1: Write the proportion equation
395,449,615.20 : 593,174,422.80 = 266,119,183.20 : x - Step 2: Convert to fraction form
395,449,615.20/593,174,422.80 = 266,119,183.20/x - Step 3: Cross multiply
395,449,615.20x = 593,174,422.80 × 266,119,183.20 - Step 4: Simplify right side
395,449,615.20x = 157,855,092,890,667,424 - Step 5: Solve for x
x = 157,855,092,890,667,424/395,449,615.20 - Step 6: Final answer
x = 399,178,774.80
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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.