Finding the Fourth Proportional to 76,516,982.70, 105,592,576.64 and 41,708,909.40
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Solution
The fourth proportional to 76,516,982.70, 105,592,576.64 and 41,708,909.40 is: 57,557,826.47
Step by Step Solution
- Step 1: Write the proportion equation
76,516,982.70 : 105,592,576.64 = 41,708,909.40 : x - Step 2: Convert to fraction form
76,516,982.70/105,592,576.64 = 41,708,909.40/x - Step 3: Cross multiply
76,516,982.70x = 105,592,576.64 × 41,708,909.40 - Step 4: Simplify right side
76,516,982.70x = 4,404,151,212,181,772 - Step 5: Solve for x
x = 4,404,151,212,181,772/76,516,982.70 - Step 6: Final answer
x = 57,557,826.47
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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.