Finding the Fourth Proportional to 20,299,515.90, 28,010,750.72 and 11,598,252.09
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Solution
The fourth proportional to 20,299,515.90, 28,010,750.72 and 11,598,252.09 is: 16,004,113.08
Step by Step Solution
- Step 1: Write the proportion equation
20,299,515.90 : 28,010,750.72 = 11,598,252.09 : x - Step 2: Convert to fraction form
20,299,515.90/28,010,750.72 = 11,598,252.09/x - Step 3: Cross multiply
20,299,515.90x = 28,010,750.72 × 11,598,252.09 - Step 4: Simplify right side
20,299,515.90x = 324,875,747,940,655.25 - Step 5: Solve for x
x = 324,875,747,940,655.25/20,299,515.90 - Step 6: Final answer
x = 16,004,113.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.