Finding the Fourth Proportional to 147,629,487.70, 221,444,231.55 and 38,454,447.70
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Solution
The fourth proportional to 147,629,487.70, 221,444,231.55 and 38,454,447.70 is: 57,681,671.55
Step by Step Solution
- Step 1: Write the proportion equation
147,629,487.70 : 221,444,231.55 = 38,454,447.70 : x - Step 2: Convert to fraction form
147,629,487.70/221,444,231.55 = 38,454,447.70/x - Step 3: Cross multiply
147,629,487.70x = 221,444,231.55 × 38,454,447.70 - Step 4: Simplify right side
147,629,487.70x = 8,515,515,620,606,166 - Step 5: Solve for x
x = 8,515,515,620,606,166/147,629,487.70 - Step 6: Final answer
x = 57,681,671.55
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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.