Finding the Fourth Proportional to 121,105,270.80, 181,657,906.20 and 106,756,363.80
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Solution
The fourth proportional to 121,105,270.80, 181,657,906.20 and 106,756,363.80 is: 160,134,545.70
Step by Step Solution
- Step 1: Write the proportion equation
121,105,270.80 : 181,657,906.20 = 106,756,363.80 : x - Step 2: Convert to fraction form
121,105,270.80/181,657,906.20 = 106,756,363.80/x - Step 3: Cross multiply
121,105,270.80x = 181,657,906.20 × 106,756,363.80 - Step 4: Simplify right side
121,105,270.80x = 19,393,137,521,433,472 - Step 5: Solve for x
x = 19,393,137,521,433,472/121,105,270.80 - Step 6: Final answer
x = 160,134,545.70
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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.