Finding the Fourth Proportional to 19,207,916.47, 28,811,923.89 and 7,848,365.08
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Solution
The fourth proportional to 19,207,916.47, 28,811,923.89 and 7,848,365.08 is: 11,772,567.72
Step by Step Solution
- Step 1: Write the proportion equation
19,207,916.47 : 28,811,923.89 = 7,848,365.08 : x - Step 2: Convert to fraction form
19,207,916.47/28,811,923.89 = 7,848,365.08/x - Step 3: Cross multiply
19,207,916.47x = 28,811,923.89 × 7,848,365.08 - Step 4: Simplify right side
19,207,916.47x = 226,126,497,345,893.78 - Step 5: Solve for x
x = 226,126,497,345,893.78/19,207,916.47 - Step 6: Final answer
x = 11,772,567.72
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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.