Finding the Fourth Proportional to 7,328,335.80, 10,992,503.70 and 5,438,767.80
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Solution
The fourth proportional to 7,328,335.80, 10,992,503.70 and 5,438,767.80 is: 8,158,151.70
Step by Step Solution
- Step 1: Write the proportion equation
7,328,335.80 : 10,992,503.70 = 5,438,767.80 : x - Step 2: Convert to fraction form
7,328,335.80/10,992,503.70 = 5,438,767.80/x - Step 3: Cross multiply
7,328,335.80x = 10,992,503.70 × 5,438,767.80 - Step 4: Simplify right side
7,328,335.80x = 59,785,675,164,940.85 - Step 5: Solve for x
x = 59,785,675,164,940.85/7,328,335.80 - Step 6: Final answer
x = 8,158,151.70
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1.5x scale
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.