Finding the Fourth Proportional to 7,971,361.80, 11,957,042.70 and 6,571,681.80
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Solution
The fourth proportional to 7,971,361.80, 11,957,042.70 and 6,571,681.80 is: 9,857,522.70
Step by Step Solution
- Step 1: Write the proportion equation
7,971,361.80 : 11,957,042.70 = 6,571,681.80 : x - Step 2: Convert to fraction form
7,971,361.80/11,957,042.70 = 6,571,681.80/x - Step 3: Cross multiply
7,971,361.80x = 11,957,042.70 × 6,571,681.80 - Step 4: Simplify right side
7,971,361.80x = 78,577,879,893,412.86 - Step 5: Solve for x
x = 78,577,879,893,412.86/7,971,361.80 - Step 6: Final answer
x = 9,857,522.70
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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.