Finding the Fourth Proportional to 11,005,985.43, 16,434,862.90 and 8,988,231.90
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Solution
The fourth proportional to 11,005,985.43, 16,434,862.90 and 8,988,231.90 is: 13,421,820.32
Step by Step Solution
- Step 1: Write the proportion equation
11,005,985.43 : 16,434,862.90 = 8,988,231.90 : x - Step 2: Convert to fraction form
11,005,985.43/16,434,862.90 = 8,988,231.90/x - Step 3: Cross multiply
11,005,985.43x = 16,434,862.90 × 8,988,231.90 - Step 4: Simplify right side
11,005,985.43x = 147,720,358,907,732.19 - Step 5: Solve for x
x = 147,720,358,907,732.19/11,005,985.43 - Step 6: Final answer
x = 13,421,820.32
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.