Finding the Fourth Proportional to 18,144,400.40, 27,195,605.40 and 7,356,366.80
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Solution
The fourth proportional to 18,144,400.40, 27,195,605.40 and 7,356,366.80 is: 11,026,038.02
Step by Step Solution
- Step 1: Write the proportion equation
18,144,400.40 : 27,195,605.40 = 7,356,366.80 : x - Step 2: Convert to fraction form
18,144,400.40/27,195,605.40 = 7,356,366.80/x - Step 3: Cross multiply
18,144,400.40x = 27,195,605.40 × 7,356,366.80 - Step 4: Simplify right side
18,144,400.40x = 200,060,848,670,460.72 - Step 5: Solve for x
x = 200,060,848,670,460.72/18,144,400.40 - Step 6: Final answer
x = 11,026,038.02
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1.5x scale
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.