Finding the Fourth Proportional to 18,396,545.09, 25,386,897.61 and 10,137,369.66
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Solution
The fourth proportional to 18,396,545.09, 25,386,897.61 and 10,137,369.66 is: 13,989,385.75
Step by Step Solution
- Step 1: Write the proportion equation
18,396,545.09 : 25,386,897.61 = 10,137,369.66 : x - Step 2: Convert to fraction form
18,396,545.09/25,386,897.61 = 10,137,369.66/x - Step 3: Cross multiply
18,396,545.09x = 25,386,897.61 × 10,137,369.66 - Step 4: Simplify right side
18,396,545.09x = 257,356,365,681,929.06 - Step 5: Solve for x
x = 257,356,365,681,929.06/18,396,545.09 - Step 6: Final answer
x = 13,989,385.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.