Finding the Fourth Proportional to 154,828,241.28, 232,385,829.12 and 78,204,975.84
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Solution
The fourth proportional to 154,828,241.28, 232,385,829.12 and 78,204,975.84 is: 117,379,930.18
Step by Step Solution
- Step 1: Write the proportion equation
154,828,241.28 : 232,385,829.12 = 78,204,975.84 : x - Step 2: Convert to fraction form
154,828,241.28/232,385,829.12 = 78,204,975.84/x - Step 3: Cross multiply
154,828,241.28x = 232,385,829.12 × 78,204,975.84 - Step 4: Simplify right side
154,828,241.28x = 18,173,728,151,887,968 - Step 5: Solve for x
x = 18,173,728,151,887,968/154,828,241.28 - Step 6: Final answer
x = 117,379,930.18
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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.