Finding the Fourth Proportional to 12,679,553.98, 17,497,818.21 and 6,878,335.72
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Solution
The fourth proportional to 12,679,553.98, 17,497,818.21 and 6,878,335.72 is: 9,492,121.58
Step by Step Solution
- Step 1: Write the proportion equation
12,679,553.98 : 17,497,818.21 = 6,878,335.72 : x - Step 2: Convert to fraction form
12,679,553.98/17,497,818.21 = 6,878,335.72/x - Step 3: Cross multiply
12,679,553.98x = 17,497,818.21 × 6,878,335.72 - Step 4: Simplify right side
12,679,553.98x = 120,355,867,989,436.03 - Step 5: Solve for x
x = 120,355,867,989,436.03/12,679,553.98 - Step 6: Final answer
x = 9,492,121.58
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1.5x scale
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.