Finding the Fourth Proportional to 7,122,603.96, 9,828,611.21 and 4,025,392.79
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Solution
The fourth proportional to 7,122,603.96, 9,828,611.21 and 4,025,392.79 is: 5,554,712.98
Step by Step Solution
- Step 1: Write the proportion equation
7,122,603.96 : 9,828,611.21 = 4,025,392.79 : x - Step 2: Convert to fraction form
7,122,603.96/9,828,611.21 = 4,025,392.79/x - Step 3: Cross multiply
7,122,603.96x = 9,828,611.21 × 4,025,392.79 - Step 4: Simplify right side
7,122,603.96x = 39,564,020,661,367.60 - Step 5: Solve for x
x = 39,564,020,661,367.60/7,122,603.96 - Step 6: Final answer
x = 5,554,712.98
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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.