Finding the Fourth Proportional to 146,164,078.56, 201,690,154.80 and 80,957,652.96
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Solution
The fourth proportional to 146,164,078.56, 201,690,154.80 and 80,957,652.96 is: 111,712,547.42
Step by Step Solution
- Step 1: Write the proportion equation
146,164,078.56 : 201,690,154.80 = 80,957,652.96 : x - Step 2: Convert to fraction form
146,164,078.56/201,690,154.80 = 80,957,652.96/x - Step 3: Cross multiply
146,164,078.56x = 201,690,154.80 × 80,957,652.96 - Step 4: Simplify right side
146,164,078.56x = 16,328,361,557,747,078 - Step 5: Solve for x
x = 16,328,361,557,747,078/146,164,078.56 - Step 6: Final answer
x = 111,712,547.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.