Finding the Fourth Proportional to 278,326,292.34, 384,079,760.82 and 154,574,941.08
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Solution
The fourth proportional to 278,326,292.34, 384,079,760.82 and 154,574,941.08 is: 213,307,574.72
Step by Step Solution
- Step 1: Write the proportion equation
278,326,292.34 : 384,079,760.82 = 154,574,941.08 : x - Step 2: Convert to fraction form
278,326,292.34/384,079,760.82 = 154,574,941.08/x - Step 3: Cross multiply
278,326,292.34x = 384,079,760.82 × 154,574,941.08 - Step 4: Simplify right side
278,326,292.34x = 59,369,106,398,772,000 - Step 5: Solve for x
x = 59,369,106,398,772,000/278,326,292.34 - Step 6: Final answer
x = 213,307,574.72
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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.