Finding the Fourth Proportional to 278,326,277.30, 384,079,740.12 and 154,574,926.04
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Solution
The fourth proportional to 278,326,277.30, 384,079,740.12 and 154,574,926.04 is: 213,307,553.99
Step by Step Solution
- Step 1: Write the proportion equation
278,326,277.30 : 384,079,740.12 = 154,574,926.04 : x - Step 2: Convert to fraction form
278,326,277.30/384,079,740.12 = 154,574,926.04/x - Step 3: Cross multiply
278,326,277.30x = 384,079,740.12 × 154,574,926.04 - Step 4: Simplify right side
278,326,277.30x = 59,369,097,420,591,024 - Step 5: Solve for x
x = 59,369,097,420,591,024/278,326,277.30 - Step 6: Final answer
x = 213,307,553.99
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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.