Finding the Fourth Proportional to 8,472,878.57, 11,698,203.05 and 6,509,259.44
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Solution
The fourth proportional to 8,472,878.57, 11,698,203.05 and 6,509,259.44 is: 8,987,103.73
Step by Step Solution
- Step 1: Write the proportion equation
8,472,878.57 : 11,698,203.05 = 6,509,259.44 : x - Step 2: Convert to fraction form
8,472,878.57/11,698,203.05 = 6,509,259.44/x - Step 3: Cross multiply
8,472,878.57x = 11,698,203.05 × 6,509,259.44 - Step 4: Simplify right side
8,472,878.57x = 76,146,638,611,489.97 - Step 5: Solve for x
x = 76,146,638,611,489.97/8,472,878.57 - Step 6: Final answer
x = 8,987,103.73
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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.