Finding the Fourth Proportional to 102,458,652.79, 141,392,518.11 and 55,415,778.79
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Solution
The fourth proportional to 102,458,652.79, 141,392,518.11 and 55,415,778.79 is: 76,473,546.09
Step by Step Solution
- Step 1: Write the proportion equation
102,458,652.79 : 141,392,518.11 = 55,415,778.79 : x - Step 2: Convert to fraction form
102,458,652.79/141,392,518.11 = 55,415,778.79/x - Step 3: Cross multiply
102,458,652.79x = 141,392,518.11 × 55,415,778.79 - Step 4: Simplify right side
102,458,652.79x = 7,835,376,506,144,830 - Step 5: Solve for x
x = 7,835,376,506,144,830/102,458,652.79 - Step 6: Final answer
x = 76,473,546.09
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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.