Finding the Fourth Proportional to 4,087,688.42, 5,640,739.98 and 2,455,125.68
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Solution
The fourth proportional to 4,087,688.42, 5,640,739.98 and 2,455,125.68 is: 3,387,911.25
Step by Step Solution
- Step 1: Write the proportion equation
4,087,688.42 : 5,640,739.98 = 2,455,125.68 : x - Step 2: Convert to fraction form
4,087,688.42/5,640,739.98 = 2,455,125.68/x - Step 3: Cross multiply
4,087,688.42x = 5,640,739.98 × 2,455,125.68 - Step 4: Simplify right side
4,087,688.42x = 13,848,725,579,100.69 - Step 5: Solve for x
x = 13,848,725,579,100.69/4,087,688.42 - Step 6: Final answer
x = 3,387,911.25
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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.