Finding the Fourth Proportional to 6,457,740.72, 8,911,682.19 and 3,557,122.62
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Solution
The fourth proportional to 6,457,740.72, 8,911,682.19 and 3,557,122.62 is: 4,908,829.21
Step by Step Solution
- Step 1: Write the proportion equation
6,457,740.72 : 8,911,682.19 = 3,557,122.62 : x - Step 2: Convert to fraction form
6,457,740.72/8,911,682.19 = 3,557,122.62/x - Step 3: Cross multiply
6,457,740.72x = 8,911,682.19 × 3,557,122.62 - Step 4: Simplify right side
6,457,740.72x = 31,699,946,300,300.14 - Step 5: Solve for x
x = 31,699,946,300,300.14/6,457,740.72 - Step 6: Final answer
x = 4,908,829.21
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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.