Finding the Fourth Proportional to 12,251,304.80, 18,376,957.20 and 10,338,117.20
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Solution
The fourth proportional to 12,251,304.80, 18,376,957.20 and 10,338,117.20 is: 15,507,175.80
Step by Step Solution
- Step 1: Write the proportion equation
12,251,304.80 : 18,376,957.20 = 10,338,117.20 : x - Step 2: Convert to fraction form
12,251,304.80/18,376,957.20 = 10,338,117.20/x - Step 3: Cross multiply
12,251,304.80x = 18,376,957.20 × 10,338,117.20 - Step 4: Simplify right side
12,251,304.80x = 189,983,137,312,983.81 - Step 5: Solve for x
x = 189,983,137,312,983.81/12,251,304.80 - Step 6: Final answer
x = 15,507,175.80
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1.5x scale
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.