Finding the Fourth Proportional to 21,323,128.77, 31,984,786.80 and 6,750,119.84
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Solution
The fourth proportional to 21,323,128.77, 31,984,786.80 and 6,750,119.84 is: 10,125,209.40
Step by Step Solution
- Step 1: Write the proportion equation
21,323,128.77 : 31,984,786.80 = 6,750,119.84 : x - Step 2: Convert to fraction form
21,323,128.77/31,984,786.80 = 6,750,119.84/x - Step 3: Cross multiply
21,323,128.77x = 31,984,786.80 × 6,750,119.84 - Step 4: Simplify right side
21,323,128.77x = 215,901,143,796,926.19 - Step 5: Solve for x
x = 215,901,143,796,926.19/21,323,128.77 - Step 6: Final answer
x = 10,125,209.40
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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.