Finding the Fourth Proportional to 5,138,337.51, 7,709,226.98 and 1,680,236.67
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Solution
The fourth proportional to 5,138,337.51, 7,709,226.98 and 1,680,236.67 is: 2,520,917.68
Step by Step Solution
- Step 1: Write the proportion equation
5,138,337.51 : 7,709,226.98 = 1,680,236.67 : x - Step 2: Convert to fraction form
5,138,337.51/7,709,226.98 = 1,680,236.67/x - Step 3: Cross multiply
5,138,337.51x = 7,709,226.98 × 1,680,236.67 - Step 4: Simplify right side
5,138,337.51x = 12,953,325,849,876.29 - Step 5: Solve for x
x = 12,953,325,849,876.29/5,138,337.51 - Step 6: Final answer
x = 2,520,917.68
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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.