Finding the Fourth Proportional to 18,144,865.80, 27,217,298.70 and 4,681,693.80
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Solution
The fourth proportional to 18,144,865.80, 27,217,298.70 and 4,681,693.80 is: 7,022,540.70
Step by Step Solution
- Step 1: Write the proportion equation
18,144,865.80 : 27,217,298.70 = 4,681,693.80 : x - Step 2: Convert to fraction form
18,144,865.80/27,217,298.70 = 4,681,693.80/x - Step 3: Cross multiply
18,144,865.80x = 27,217,298.70 × 4,681,693.80 - Step 4: Simplify right side
18,144,865.80x = 127,423,058,576,538.05 - Step 5: Solve for x
x = 127,423,058,576,538.05/18,144,865.80 - Step 6: Final answer
x = 7,022,540.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.