Finding the Fourth Proportional to 20,771,174.64, 31,128,911.36 and 16,165,721.70
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Solution
The fourth proportional to 20,771,174.64, 31,128,911.36 and 16,165,721.70 is: 24,226,907.07
Step by Step Solution
- Step 1: Write the proportion equation
20,771,174.64 : 31,128,911.36 = 16,165,721.70 : x - Step 2: Convert to fraction form
20,771,174.64/31,128,911.36 = 16,165,721.70/x - Step 3: Cross multiply
20,771,174.64x = 31,128,911.36 × 16,165,721.70 - Step 4: Simplify right side
20,771,174.64x = 503,221,317,788,899.88 - Step 5: Solve for x
x = 503,221,317,788,899.88/20,771,174.64 - Step 6: Final answer
x = 24,226,907.07
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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.