Finding the Fourth Proportional to 5,781,580.20, 7,982,477.91 and 5,167,765.98
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Solution
The fourth proportional to 5,781,580.20, 7,982,477.91 and 5,167,765.98 is: 7,135,000.53
Step by Step Solution
- Step 1: Write the proportion equation
5,781,580.20 : 7,982,477.91 = 5,167,765.98 : x - Step 2: Convert to fraction form
5,781,580.20/7,982,477.91 = 5,167,765.98/x - Step 3: Cross multiply
5,781,580.20x = 7,982,477.91 × 5,167,765.98 - Step 4: Simplify right side
5,781,580.20x = 41,251,577,779,399.51 - Step 5: Solve for x
x = 41,251,577,779,399.51/5,781,580.20 - Step 6: Final answer
x = 7,135,000.53
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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.