Finding the Fourth Proportional to 69,266,663.05, 103,916,163.80 and 20,083,545.13
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Solution
The fourth proportional to 69,266,663.05, 103,916,163.80 and 20,083,545.13 is: 30,130,005.89
Step by Step Solution
- Step 1: Write the proportion equation
69,266,663.05 : 103,916,163.80 = 20,083,545.13 : x - Step 2: Convert to fraction form
69,266,663.05/103,916,163.80 = 20,083,545.13/x - Step 3: Cross multiply
69,266,663.05x = 103,916,163.80 × 20,083,545.13 - Step 4: Simplify right side
69,266,663.05x = 2,087,004,965,413,772.25 - Step 5: Solve for x
x = 2,087,004,965,413,772.25/69,266,663.05 - Step 6: Final answer
x = 30,130,005.89
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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.