Finding the Fourth Proportional to 19,128,033.97, 28,675,063.05 and 7,453,702.42
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Solution
The fourth proportional to 19,128,033.97, 28,675,063.05 and 7,453,702.42 is: 11,173,933.88
Step by Step Solution
- Step 1: Write the proportion equation
19,128,033.97 : 28,675,063.05 = 7,453,702.42 : x - Step 2: Convert to fraction form
19,128,033.97/28,675,063.05 = 7,453,702.42/x - Step 3: Cross multiply
19,128,033.97x = 28,675,063.05 × 7,453,702.42 - Step 4: Simplify right side
19,128,033.97x = 213,735,386,849,437.59 - Step 5: Solve for x
x = 213,735,386,849,437.59/19,128,033.97 - Step 6: Final answer
x = 11,173,933.88
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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.