Finding the Fourth Proportional to 68,832,146.80, 103,248,220.20 and 48,228,857.20
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Solution
The fourth proportional to 68,832,146.80, 103,248,220.20 and 48,228,857.20 is: 72,343,285.80
Step by Step Solution
- Step 1: Write the proportion equation
68,832,146.80 : 103,248,220.20 = 48,228,857.20 : x - Step 2: Convert to fraction form
68,832,146.80/103,248,220.20 = 48,228,857.20/x - Step 3: Cross multiply
68,832,146.80x = 103,248,220.20 × 48,228,857.20 - Step 4: Simplify right side
68,832,146.80x = 4,979,543,668,179,956 - Step 5: Solve for x
x = 4,979,543,668,179,956/68,832,146.80 - Step 6: Final answer
x = 72,343,285.80
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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.