Finding the Fourth Proportional to 53,310,479.26, 79,965,719.79 and 12,920,963.26
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Solution
The fourth proportional to 53,310,479.26, 79,965,719.79 and 12,920,963.26 is: 19,381,445.11
Step by Step Solution
- Step 1: Write the proportion equation
53,310,479.26 : 79,965,719.79 = 12,920,963.26 : x - Step 2: Convert to fraction form
53,310,479.26/79,965,719.79 = 12,920,963.26/x - Step 3: Cross multiply
53,310,479.26x = 79,965,719.79 × 12,920,963.26 - Step 4: Simplify right side
53,310,479.26x = 1,033,234,127,466,045 - Step 5: Solve for x
x = 1,033,234,127,466,045/53,310,479.26 - Step 6: Final answer
x = 19,381,445.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.