Finding the Fourth Proportional to 7,685,982.64, 10,606,881.61 and 4,201,513.97
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Solution
The fourth proportional to 7,685,982.64, 10,606,881.61 and 4,201,513.97 is: 5,798,212.59
Step by Step Solution
- Step 1: Write the proportion equation
7,685,982.64 : 10,606,881.61 = 4,201,513.97 : x - Step 2: Convert to fraction form
7,685,982.64/10,606,881.61 = 4,201,513.97/x - Step 3: Cross multiply
7,685,982.64x = 10,606,881.61 × 4,201,513.97 - Step 4: Simplify right side
7,685,982.64x = 44,564,961,294,320.19 - Step 5: Solve for x
x = 44,564,961,294,320.19/7,685,982.64 - Step 6: Final answer
x = 5,798,212.59
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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.