Finding the Fourth Proportional to 5,087,547.12, 7,021,205.62 and 2,912,772.44
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Solution
The fourth proportional to 5,087,547.12, 7,021,205.62 and 2,912,772.44 is: 4,019,849.59
Step by Step Solution
- Step 1: Write the proportion equation
5,087,547.12 : 7,021,205.62 = 2,912,772.44 : x - Step 2: Convert to fraction form
5,087,547.12/7,021,205.62 = 2,912,772.44/x - Step 3: Cross multiply
5,087,547.12x = 7,021,205.62 × 2,912,772.44 - Step 4: Simplify right side
5,087,547.12x = 20,451,174,225,509.11 - Step 5: Solve for x
x = 20,451,174,225,509.11/5,087,547.12 - Step 6: Final answer
x = 4,019,849.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.