Finding the Fourth Proportional to 19,586,390.40, 29,365,588.80 and 8,794,857.60
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Solution
The fourth proportional to 19,586,390.40, 29,365,588.80 and 8,794,857.60 is: 13,186,001.43
Step by Step Solution
- Step 1: Write the proportion equation
19,586,390.40 : 29,365,588.80 = 8,794,857.60 : x - Step 2: Convert to fraction form
19,586,390.40/29,365,588.80 = 8,794,857.60/x - Step 3: Cross multiply
19,586,390.40x = 29,365,588.80 × 8,794,857.60 - Step 4: Simplify right side
19,586,390.40x = 258,266,171,836,154.88 - Step 5: Solve for x
x = 258,266,171,836,154.88/19,586,390.40 - Step 6: Final answer
x = 13,186,001.43
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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.