Finding the Fourth Proportional to 7,780,460.30, 11,671,250.95 and 2,988,149.57
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Solution
The fourth proportional to 7,780,460.30, 11,671,250.95 and 2,988,149.57 is: 4,482,439.62
Step by Step Solution
- Step 1: Write the proportion equation
7,780,460.30 : 11,671,250.95 = 2,988,149.57 : x - Step 2: Convert to fraction form
7,780,460.30/11,671,250.95 = 2,988,149.57/x - Step 3: Cross multiply
7,780,460.30x = 11,671,250.95 × 2,988,149.57 - Step 4: Simplify right side
7,780,460.30x = 34,875,443,540,517.90 - Step 5: Solve for x
x = 34,875,443,540,517.90/7,780,460.30 - Step 6: Final answer
x = 4,482,439.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.