Finding the Fourth Proportional to 12,009,158.97, 18,013,780.57 and 2,911,219.53
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Solution
The fourth proportional to 12,009,158.97, 18,013,780.57 and 2,911,219.53 is: 4,366,839.50
Step by Step Solution
- Step 1: Write the proportion equation
12,009,158.97 : 18,013,780.57 = 2,911,219.53 : x - Step 2: Convert to fraction form
12,009,158.97/18,013,780.57 = 2,911,219.53/x - Step 3: Cross multiply
12,009,158.97x = 18,013,780.57 × 2,911,219.53 - Step 4: Simplify right side
12,009,158.97x = 52,442,069,714,449.62 - Step 5: Solve for x
x = 52,442,069,714,449.62/12,009,158.97 - Step 6: Final answer
x = 4,366,839.50
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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.