Finding the Fourth Proportional to 4,811,690.16, 6,640,132.23 and 2,636,315.82
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Solution
The fourth proportional to 4,811,690.16, 6,640,132.23 and 2,636,315.82 is: 3,638,115.73
Step by Step Solution
- Step 1: Write the proportion equation
4,811,690.16 : 6,640,132.23 = 2,636,315.82 : x - Step 2: Convert to fraction form
4,811,690.16/6,640,132.23 = 2,636,315.82/x - Step 3: Cross multiply
4,811,690.16x = 6,640,132.23 × 2,636,315.82 - Step 4: Simplify right side
4,811,690.16x = 17,505,485,644,840.88 - Step 5: Solve for x
x = 17,505,485,644,840.88/4,811,690.16 - Step 6: Final answer
x = 3,638,115.73
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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.