Finding the Fourth Proportional to 5,439,207.40, 8,159,588.70 and 1,845,140.20
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Solution
The fourth proportional to 5,439,207.40, 8,159,588.70 and 1,845,140.20 is: 2,767,974.08
Step by Step Solution
- Step 1: Write the proportion equation
5,439,207.40 : 8,159,588.70 = 1,845,140.20 : x - Step 2: Convert to fraction form
5,439,207.40/8,159,588.70 = 1,845,140.20/x - Step 3: Cross multiply
5,439,207.40x = 8,159,588.70 × 1,845,140.20 - Step 4: Simplify right side
5,439,207.40x = 15,055,585,125,835.74 - Step 5: Solve for x
x = 15,055,585,125,835.74/5,439,207.40 - Step 6: Final answer
x = 2,767,974.08
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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.