Finding the Fourth Proportional to 19,930,829.70, 29,896,244.55 and 18,167,232.90
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Solution
The fourth proportional to 19,930,829.70, 29,896,244.55 and 18,167,232.90 is: 27,250,849.35
Step by Step Solution
- Step 1: Write the proportion equation
19,930,829.70 : 29,896,244.55 = 18,167,232.90 : x - Step 2: Convert to fraction form
19,930,829.70/29,896,244.55 = 18,167,232.90/x - Step 3: Cross multiply
19,930,829.70x = 29,896,244.55 × 18,167,232.90 - Step 4: Simplify right side
19,930,829.70x = 543,132,037,575,205.69 - Step 5: Solve for x
x = 543,132,037,575,205.69/19,930,829.70 - Step 6: Final answer
x = 27,250,849.35
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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.