Finding the Fourth Proportional to 19,128,048.48, 28,675,084.79 and 7,453,716.92
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Solution
The fourth proportional to 19,128,048.48, 28,675,084.79 and 7,453,716.92 is: 11,173,955.61
Step by Step Solution
- Step 1: Write the proportion equation
19,128,048.48 : 28,675,084.79 = 7,453,716.92 : x - Step 2: Convert to fraction form
19,128,048.48/28,675,084.79 = 7,453,716.92/x - Step 3: Cross multiply
19,128,048.48x = 28,675,084.79 × 7,453,716.92 - Step 4: Simplify right side
19,128,048.48x = 213,735,964,681,657.62 - Step 5: Solve for x
x = 213,735,964,681,657.62/19,128,048.48 - Step 6: Final answer
x = 11,173,955.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.