Finding the Fourth Proportional to 103,166,485.98, 142,364,604.63 and 56,755,546.62
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Solution
The fourth proportional to 103,166,485.98, 142,364,604.63 and 56,755,546.62 is: 78,319,823.33
Step by Step Solution
- Step 1: Write the proportion equation
103,166,485.98 : 142,364,604.63 = 56,755,546.62 : x - Step 2: Convert to fraction form
103,166,485.98/142,364,604.63 = 56,755,546.62/x - Step 3: Cross multiply
103,166,485.98x = 142,364,604.63 × 56,755,546.62 - Step 4: Simplify right side
103,166,485.98x = 8,079,980,955,115,832 - Step 5: Solve for x
x = 8,079,980,955,115,832/103,166,485.98 - Step 6: Final answer
x = 78,319,823.33
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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.