Finding the Fourth Proportional to 20,838,545.57, 31,241,125.47 and 9,903,246.68
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Solution
The fourth proportional to 20,838,545.57, 31,241,125.47 and 9,903,246.68 is: 14,846,936.95
Step by Step Solution
- Step 1: Write the proportion equation
20,838,545.57 : 31,241,125.47 = 9,903,246.68 : x - Step 2: Convert to fraction form
20,838,545.57/31,241,125.47 = 9,903,246.68/x - Step 3: Cross multiply
20,838,545.57x = 31,241,125.47 × 9,903,246.68 - Step 4: Simplify right side
20,838,545.57x = 309,388,572,205,480.88 - Step 5: Solve for x
x = 309,388,572,205,480.88/20,838,545.57 - Step 6: Final answer
x = 14,846,936.95
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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.