Finding the Fourth Proportional to 312,237,886.41, 430,888,789.67 and 171,086,677.02
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Solution
The fourth proportional to 312,237,886.41, 430,888,789.67 and 171,086,677.02 is: 236,099,891.77
Step by Step Solution
- Step 1: Write the proportion equation
312,237,886.41 : 430,888,789.67 = 171,086,677.02 : x - Step 2: Convert to fraction form
312,237,886.41/430,888,789.67 = 171,086,677.02/x - Step 3: Cross multiply
312,237,886.41x = 430,888,789.67 × 171,086,677.02 - Step 4: Simplify right side
312,237,886.41x = 73,719,331,188,954,576 - Step 5: Solve for x
x = 73,719,331,188,954,576/312,237,886.41 - Step 6: Final answer
x = 236,099,891.77
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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.