Finding the Fourth Proportional to 5,358,815.50, 7,395,125.56 and 2,911,446.65
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Solution
The fourth proportional to 5,358,815.50, 7,395,125.56 and 2,911,446.65 is: 4,017,774.75
Step by Step Solution
- Step 1: Write the proportion equation
5,358,815.50 : 7,395,125.56 = 2,911,446.65 : x - Step 2: Convert to fraction form
5,358,815.50/7,395,125.56 = 2,911,446.65/x - Step 3: Cross multiply
5,358,815.50x = 7,395,125.56 × 2,911,446.65 - Step 4: Simplify right side
5,358,815.50x = 21,530,513,568,895.25 - Step 5: Solve for x
x = 21,530,513,568,895.25/5,358,815.50 - Step 6: Final answer
x = 4,017,774.75
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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.