Finding the Fourth Proportional to 12,616,464.84, 18,926,271.12 and 4,939,117.98
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Solution
The fourth proportional to 12,616,464.84, 18,926,271.12 and 4,939,117.98 is: 7,409,293.11
Step by Step Solution
- Step 1: Write the proportion equation
12,616,464.84 : 18,926,271.12 = 4,939,117.98 : x - Step 2: Convert to fraction form
12,616,464.84/18,926,271.12 = 4,939,117.98/x - Step 3: Cross multiply
12,616,464.84x = 18,926,271.12 × 4,939,117.98 - Step 4: Simplify right side
12,616,464.84x = 93,479,085,983,146.75 - Step 5: Solve for x
x = 93,479,085,983,146.75/12,616,464.84 - Step 6: Final answer
x = 7,409,293.11
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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.