Finding the Fourth Proportional to 18,879,963.94, 26,056,364.79 and 11,041,872.58
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Solution
The fourth proportional to 18,879,963.94, 26,056,364.79 and 11,041,872.58 is: 15,238,962.36
Step by Step Solution
- Step 1: Write the proportion equation
18,879,963.94 : 26,056,364.79 = 11,041,872.58 : x - Step 2: Convert to fraction form
18,879,963.94/26,056,364.79 = 11,041,872.58/x - Step 3: Cross multiply
18,879,963.94x = 26,056,364.79 × 11,041,872.58 - Step 4: Simplify right side
18,879,963.94x = 287,711,059,909,178.44 - Step 5: Solve for x
x = 287,711,059,909,178.44/18,879,963.94 - Step 6: Final answer
x = 15,238,962.36
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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.