Finding the Fourth Proportional to 21,283,158.72, 29,370,758.98 and 11,493,602.36
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Solution
The fourth proportional to 21,283,158.72, 29,370,758.98 and 11,493,602.36 is: 15,861,171.23
Step by Step Solution
- Step 1: Write the proportion equation
21,283,158.72 : 29,370,758.98 = 11,493,602.36 : x - Step 2: Convert to fraction form
21,283,158.72/29,370,758.98 = 11,493,602.36/x - Step 3: Cross multiply
21,283,158.72x = 29,370,758.98 × 11,493,602.36 - Step 4: Simplify right side
21,283,158.72x = 337,575,824,727,519.19 - Step 5: Solve for x
x = 337,575,824,727,519.19/21,283,158.72 - Step 6: Final answer
x = 15,861,171.23
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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.