Finding the Fourth Proportional to 74,725,902.10, 103,121,458.53 and 41,686,124.92
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Solution
The fourth proportional to 74,725,902.10, 103,121,458.53 and 41,686,124.92 is: 57,526,692.63
Step by Step Solution
- Step 1: Write the proportion equation
74,725,902.10 : 103,121,458.53 = 41,686,124.92 : x - Step 2: Convert to fraction form
74,725,902.10/103,121,458.53 = 41,686,124.92/x - Step 3: Cross multiply
74,725,902.10x = 103,121,458.53 × 41,686,124.92 - Step 4: Simplify right side
74,725,902.10x = 4,298,734,001,800,053 - Step 5: Solve for x
x = 4,298,734,001,800,053/74,725,902.10 - Step 6: Final answer
x = 57,526,692.63
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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.