Finding the Fourth Proportional to 3,860,458.98, 5,328,072.03 and 2,142,133.08
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Solution
The fourth proportional to 3,860,458.98, 5,328,072.03 and 2,142,133.08 is: 2,956,498.02
Step by Step Solution
- Step 1: Write the proportion equation
3,860,458.98 : 5,328,072.03 = 2,142,133.08 : x - Step 2: Convert to fraction form
3,860,458.98/5,328,072.03 = 2,142,133.08/x - Step 3: Cross multiply
3,860,458.98x = 5,328,072.03 × 2,142,133.08 - Step 4: Simplify right side
3,860,458.98x = 11,413,439,348,085.75 - Step 5: Solve for x
x = 11,413,439,348,085.75/3,860,458.98 - Step 6: Final answer
x = 2,956,498.02
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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.