Finding the Fourth Proportional to 19,681,491.77, 29,520,244.36 and 5,306,012.72
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Solution
The fourth proportional to 19,681,491.77, 29,520,244.36 and 5,306,012.72 is: 7,958,481.69
Step by Step Solution
- Step 1: Write the proportion equation
19,681,491.77 : 29,520,244.36 = 5,306,012.72 : x - Step 2: Convert to fraction form
19,681,491.77/29,520,244.36 = 5,306,012.72/x - Step 3: Cross multiply
19,681,491.77x = 29,520,244.36 × 5,306,012.72 - Step 4: Simplify right side
19,681,491.77x = 156,634,791,930,699.53 - Step 5: Solve for x
x = 156,634,791,930,699.53/19,681,491.77 - Step 6: Final answer
x = 7,958,481.69
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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.