Finding the Fourth Proportional to 9,988,329.54, 13,793,209.20 and 7,351,717.80
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Solution
The fourth proportional to 9,988,329.54, 13,793,209.20 and 7,351,717.80 is: 10,152,226.27
Step by Step Solution
- Step 1: Write the proportion equation
9,988,329.54 : 13,793,209.20 = 7,351,717.80 : x - Step 2: Convert to fraction form
9,988,329.54/13,793,209.20 = 7,351,717.80/x - Step 3: Cross multiply
9,988,329.54x = 13,793,209.20 × 7,351,717.80 - Step 4: Simplify right side
9,988,329.54x = 101,403,781,594,763.75 - Step 5: Solve for x
x = 101,403,781,594,763.75/9,988,329.54 - Step 6: Final answer
x = 10,152,226.27
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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.