Finding the Fourth Proportional to 12,390,207.66, 18,578,929.84 and 5,560,926.35
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Solution
The fourth proportional to 12,390,207.66, 18,578,929.84 and 5,560,926.35 is: 8,338,525.33
Step by Step Solution
- Step 1: Write the proportion equation
12,390,207.66 : 18,578,929.84 = 5,560,926.35 : x - Step 2: Convert to fraction form
12,390,207.66/18,578,929.84 = 5,560,926.35/x - Step 3: Cross multiply
12,390,207.66x = 18,578,929.84 × 5,560,926.35 - Step 4: Simplify right side
12,390,207.66x = 103,316,060,395,260.31 - Step 5: Solve for x
x = 103,316,060,395,260.31/12,390,207.66 - Step 6: Final answer
x = 8,338,525.33
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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.