Finding the Fourth Proportional to 3,872,603.75, 5,344,292.90 and 2,130,317.90
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Solution
The fourth proportional to 3,872,603.75, 5,344,292.90 and 2,130,317.90 is: 2,939,893.56
Step by Step Solution
- Step 1: Write the proportion equation
3,872,603.75 : 5,344,292.90 = 2,130,317.90 : x - Step 2: Convert to fraction form
3,872,603.75/5,344,292.90 = 2,130,317.90/x - Step 3: Cross multiply
3,872,603.75x = 5,344,292.90 × 2,130,317.90 - Step 4: Simplify right side
3,872,603.75x = 11,385,042,827,712.91 - Step 5: Solve for x
x = 11,385,042,827,712.91/3,872,603.75 - Step 6: Final answer
x = 2,939,893.56
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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.