Finding the Fourth Proportional to 156,567,321.83, 216,531,102.99 and 136,954,163.68
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Solution
The fourth proportional to 156,567,321.83, 216,531,102.99 and 136,954,163.68 is: 189,406,293.56
Step by Step Solution
- Step 1: Write the proportion equation
156,567,321.83 : 216,531,102.99 = 136,954,163.68 : x - Step 2: Convert to fraction form
156,567,321.83/216,531,102.99 = 136,954,163.68/x - Step 3: Cross multiply
156,567,321.83x = 216,531,102.99 × 136,954,163.68 - Step 4: Simplify right side
156,567,321.83x = 29,654,836,120,675,652 - Step 5: Solve for x
x = 29,654,836,120,675,652/156,567,321.83 - Step 6: Final answer
x = 189,406,293.56
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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.