Finding the Fourth Proportional to 20,771,132.74, 31,128,849.01 and 16,165,680.06
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Solution
The fourth proportional to 20,771,132.74, 31,128,849.01 and 16,165,680.06 is: 24,226,845.02
Step by Step Solution
- Step 1: Write the proportion equation
20,771,132.74 : 31,128,849.01 = 16,165,680.06 : x - Step 2: Convert to fraction form
20,771,132.74/31,128,849.01 = 16,165,680.06/x - Step 3: Cross multiply
20,771,132.74x = 31,128,849.01 × 16,165,680.06 - Step 4: Simplify right side
20,771,132.74x = 503,219,013,731,707.81 - Step 5: Solve for x
x = 503,219,013,731,707.81/20,771,132.74 - Step 6: Final answer
x = 24,226,845.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.