Finding the Fourth Proportional to 13,631,319.50, 18,810,918.16 and 7,519,746.38
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Solution
The fourth proportional to 13,631,319.50, 18,810,918.16 and 7,519,746.38 is: 10,377,082.99
Step by Step Solution
- Step 1: Write the proportion equation
13,631,319.50 : 18,810,918.16 = 7,519,746.38 : x - Step 2: Convert to fraction form
13,631,319.50/18,810,918.16 = 7,519,746.38/x - Step 3: Cross multiply
13,631,319.50x = 18,810,918.16 × 7,519,746.38 - Step 4: Simplify right side
13,631,319.50x = 141,453,333,625,282.28 - Step 5: Solve for x
x = 141,453,333,625,282.28/13,631,319.50 - Step 6: Final answer
x = 10,377,082.99
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1.5x scale
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.