Finding the Fourth Proportional to 74,883,124.80, 112,324,687.20 and 54,316,358.10
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Solution
The fourth proportional to 74,883,124.80, 112,324,687.20 and 54,316,358.10 is: 81,474,537.15
Step by Step Solution
- Step 1: Write the proportion equation
74,883,124.80 : 112,324,687.20 = 54,316,358.10 : x - Step 2: Convert to fraction form
74,883,124.80/112,324,687.20 = 54,316,358.10/x - Step 3: Cross multiply
74,883,124.80x = 112,324,687.20 × 54,316,358.10 - Step 4: Simplify right side
74,883,124.80x = 6,101,067,933,425,687 - Step 5: Solve for x
x = 6,101,067,933,425,687/74,883,124.80 - Step 6: Final answer
x = 81,474,537.15
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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.