Finding the Fourth Proportional to 12,720,651.84, 19,087,282.62 and 5,044,132.08
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Solution
The fourth proportional to 12,720,651.84, 19,087,282.62 and 5,044,132.08 is: 7,568,698.19
Step by Step Solution
- Step 1: Write the proportion equation
12,720,651.84 : 19,087,282.62 = 5,044,132.08 : x - Step 2: Convert to fraction form
12,720,651.84/19,087,282.62 = 5,044,132.08/x - Step 3: Cross multiply
12,720,651.84x = 19,087,282.62 × 5,044,132.08 - Step 4: Simplify right side
12,720,651.84x = 96,278,774,583,568.45 - Step 5: Solve for x
x = 96,278,774,583,568.45/12,720,651.84 - Step 6: Final answer
x = 7,568,698.19
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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.