Finding the Fourth Proportional to 278,326,278.05, 384,079,741.16 and 154,574,926.79
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Solution
The fourth proportional to 278,326,278.05, 384,079,741.16 and 154,574,926.79 is: 213,307,555.02
Step by Step Solution
- Step 1: Write the proportion equation
278,326,278.05 : 384,079,741.16 = 154,574,926.79 : x - Step 2: Convert to fraction form
278,326,278.05/384,079,741.16 = 154,574,926.79/x - Step 3: Cross multiply
278,326,278.05x = 384,079,741.16 × 154,574,926.79 - Step 4: Simplify right side
278,326,278.05x = 59,369,097,868,635,872 - Step 5: Solve for x
x = 59,369,097,868,635,872/278,326,278.05 - Step 6: Final answer
x = 213,307,555.02
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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.