Finding the Fourth Proportional to 20,418,437.02, 28,178,044.14 and 11,251,670.26
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Solution
The fourth proportional to 20,418,437.02, 28,178,044.14 and 11,251,670.26 is: 15,527,636.17
Step by Step Solution
- Step 1: Write the proportion equation
20,418,437.02 : 28,178,044.14 = 11,251,670.26 : x - Step 2: Convert to fraction form
20,418,437.02/28,178,044.14 = 11,251,670.26/x - Step 3: Cross multiply
20,418,437.02x = 28,178,044.14 × 11,251,670.26 - Step 4: Simplify right side
20,418,437.02x = 317,050,061,235,005.25 - Step 5: Solve for x
x = 317,050,061,235,005.25/20,418,437.02 - Step 6: Final answer
x = 15,527,636.17
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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.