Finding the Fourth Proportional to 4,888,511.36, 7,332,737.88 and 2,658,821.12
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Solution
The fourth proportional to 4,888,511.36, 7,332,737.88 and 2,658,821.12 is: 3,988,215.82
Step by Step Solution
- Step 1: Write the proportion equation
4,888,511.36 : 7,332,737.88 = 2,658,821.12 : x - Step 2: Convert to fraction form
4,888,511.36/7,332,737.88 = 2,658,821.12/x - Step 3: Cross multiply
4,888,511.36x = 7,332,737.88 × 2,658,821.12 - Step 4: Simplify right side
4,888,511.36x = 19,496,438,342,768.03 - Step 5: Solve for x
x = 19,496,438,342,768.03/4,888,511.36 - Step 6: Final answer
x = 3,988,215.82
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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.