Finding the Fourth Proportional to 12,328,886.28, 16,999,939.98 and 9,221,451.08
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Solution
The fourth proportional to 12,328,886.28, 16,999,939.98 and 9,221,451.08 is: 12,715,188.65
Step by Step Solution
- Step 1: Write the proportion equation
12,328,886.28 : 16,999,939.98 = 9,221,451.08 : x - Step 2: Convert to fraction form
12,328,886.28/16,999,939.98 = 9,221,451.08/x - Step 3: Cross multiply
12,328,886.28x = 16,999,939.98 × 9,221,451.08 - Step 4: Simplify right side
12,328,886.28x = 156,764,114,931,006.03 - Step 5: Solve for x
x = 156,764,114,931,006.03/12,328,886.28 - Step 6: Final answer
x = 12,715,188.65
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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.