Finding the Fourth Proportional to 306,320,348.99, 422,724,779.49 and 167,091,729.95
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Solution
The fourth proportional to 306,320,348.99, 422,724,779.49 and 167,091,729.95 is: 230,588,058.97
Step by Step Solution
- Step 1: Write the proportion equation
306,320,348.99 : 422,724,779.49 = 167,091,729.95 : x - Step 2: Convert to fraction form
306,320,348.99/422,724,779.49 = 167,091,729.95/x - Step 3: Cross multiply
306,320,348.99x = 422,724,779.49 × 167,091,729.95 - Step 4: Simplify right side
306,320,348.99x = 70,633,814,695,602,752 - Step 5: Solve for x
x = 70,633,814,695,602,752/306,320,348.99 - Step 6: Final answer
x = 230,588,058.97
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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.