Finding the Fourth Proportional to 8,075,113.17, 12,115,294.15 and 5,390,351.97
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Solution
The fourth proportional to 8,075,113.17, 12,115,294.15 and 5,390,351.97 is: 8,087,279.81
Step by Step Solution
- Step 1: Write the proportion equation
8,075,113.17 : 12,115,294.15 = 5,390,351.97 : x - Step 2: Convert to fraction form
8,075,113.17/12,115,294.15 = 5,390,351.97/x - Step 3: Cross multiply
8,075,113.17x = 12,115,294.15 × 5,390,351.97 - Step 4: Simplify right side
8,075,113.17x = 65,305,699,688,581.98 - Step 5: Solve for x
x = 65,305,699,688,581.98/8,075,113.17 - Step 6: Final answer
x = 8,087,279.81
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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.