Finding the Fourth Proportional to 71,268,778.31, 106,943,604.29 and 38,478,907.49
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Solution
The fourth proportional to 71,268,778.31, 106,943,604.29 and 38,478,907.49 is: 57,740,193.58
Step by Step Solution
- Step 1: Write the proportion equation
71,268,778.31 : 106,943,604.29 = 38,478,907.49 : x - Step 2: Convert to fraction form
71,268,778.31/106,943,604.29 = 38,478,907.49/x - Step 3: Cross multiply
71,268,778.31x = 106,943,604.29 × 38,478,907.49 - Step 4: Simplify right side
71,268,778.31x = 4,115,073,056,122,077.50 - Step 5: Solve for x
x = 4,115,073,056,122,077.50/71,268,778.31 - Step 6: Final answer
x = 57,740,193.58
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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.