Finding the Fourth Proportional to 80,852,712.70, 121,279,069.06 and 44,447,035.90
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Solution
The fourth proportional to 80,852,712.70, 121,279,069.06 and 44,447,035.90 is: 66,670,553.86
Step by Step Solution
- Step 1: Write the proportion equation
80,852,712.70 : 121,279,069.06 = 44,447,035.90 : x - Step 2: Convert to fraction form
80,852,712.70/121,279,069.06 = 44,447,035.90/x - Step 3: Cross multiply
80,852,712.70x = 121,279,069.06 × 44,447,035.90 - Step 4: Simplify right side
80,852,712.70x = 5,390,495,136,428,399 - Step 5: Solve for x
x = 5,390,495,136,428,399/80,852,712.70 - Step 6: Final answer
x = 66,670,553.86
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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.