Finding the Fourth Proportional to 218,951,691.78, 302,154,135.42 and 118,480,129.92
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Solution
The fourth proportional to 218,951,691.78, 302,154,135.42 and 118,480,129.92 is: 163,503,012.60
Step by Step Solution
- Step 1: Write the proportion equation
218,951,691.78 : 302,154,135.42 = 118,480,129.92 : x - Step 2: Convert to fraction form
218,951,691.78/302,154,135.42 = 118,480,129.92/x - Step 3: Cross multiply
218,951,691.78x = 302,154,135.42 × 118,480,129.92 - Step 4: Simplify right side
218,951,691.78x = 35,799,261,220,426,876 - Step 5: Solve for x
x = 35,799,261,220,426,876/218,951,691.78 - Step 6: Final answer
x = 163,503,012.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.