Finding the Fourth Proportional to 20,771,177.14, 31,128,915.09 and 16,165,724.20
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Solution
The fourth proportional to 20,771,177.14, 31,128,915.09 and 16,165,724.20 is: 24,226,910.81
Step by Step Solution
- Step 1: Write the proportion equation
20,771,177.14 : 31,128,915.09 = 16,165,724.20 : x - Step 2: Convert to fraction form
20,771,177.14/31,128,915.09 = 16,165,724.20/x - Step 3: Cross multiply
20,771,177.14x = 31,128,915.09 × 16,165,724.20 - Step 4: Simplify right side
20,771,177.14x = 503,221,455,990,158.12 - Step 5: Solve for x
x = 503,221,455,990,158.12/20,771,177.14 - Step 6: Final answer
x = 24,226,910.81
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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.