Finding the Fourth Proportional to 6,971,236.92, 9,621,209.07 and 3,915,451.08
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Solution
The fourth proportional to 6,971,236.92, 9,621,209.07 and 3,915,451.08 is: 5,403,829.17
Step by Step Solution
- Step 1: Write the proportion equation
6,971,236.92 : 9,621,209.07 = 3,915,451.08 : x - Step 2: Convert to fraction form
6,971,236.92/9,621,209.07 = 3,915,451.08/x - Step 3: Cross multiply
6,971,236.92x = 9,621,209.07 × 3,915,451.08 - Step 4: Simplify right side
6,971,236.92x = 37,671,373,444,037.30 - Step 5: Solve for x
x = 37,671,373,444,037.30/6,971,236.92 - Step 6: Final answer
x = 5,403,829.17
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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.