Finding the Fourth Proportional to 81,679,657.43, 122,519,042.26 and 47,113,652.63
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Solution
The fourth proportional to 81,679,657.43, 122,519,042.26 and 47,113,652.63 is: 70,670,222.91
Step by Step Solution
- Step 1: Write the proportion equation
81,679,657.43 : 122,519,042.26 = 47,113,652.63 : x - Step 2: Convert to fraction form
81,679,657.43/122,519,042.26 = 47,113,652.63/x - Step 3: Cross multiply
81,679,657.43x = 122,519,042.26 × 47,113,652.63 - Step 4: Simplify right side
81,679,657.43x = 5,772,319,597,597,931 - Step 5: Solve for x
x = 5,772,319,597,597,931/81,679,657.43 - Step 6: Final answer
x = 70,670,222.91
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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.