Finding the Fourth Proportional to 68,553,545.05, 94,603,881.90 and 39,185,508.19
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Solution
The fourth proportional to 68,553,545.05, 94,603,881.90 and 39,185,508.19 is: 54,075,995.43
Step by Step Solution
- Step 1: Write the proportion equation
68,553,545.05 : 94,603,881.90 = 39,185,508.19 : x - Step 2: Convert to fraction form
68,553,545.05/94,603,881.90 = 39,185,508.19/x - Step 3: Cross multiply
68,553,545.05x = 94,603,881.90 × 39,185,508.19 - Step 4: Simplify right side
68,553,545.05x = 3,707,101,188,998,243 - Step 5: Solve for x
x = 3,707,101,188,998,243/68,553,545.05 - Step 6: Final answer
x = 54,075,995.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.