Finding the Fourth Proportional to 14,278,215.87, 21,399,127.97 and 6,688,451.07
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Solution
The fourth proportional to 14,278,215.87, 21,399,127.97 and 6,688,451.07 is: 10,024,152.99
Step by Step Solution
- Step 1: Write the proportion equation
14,278,215.87 : 21,399,127.97 = 6,688,451.07 : x - Step 2: Convert to fraction form
14,278,215.87/21,399,127.97 = 6,688,451.07/x - Step 3: Cross multiply
14,278,215.87x = 21,399,127.97 × 6,688,451.07 - Step 4: Simplify right side
14,278,215.87x = 143,127,020,334,571.19 - Step 5: Solve for x
x = 143,127,020,334,571.19/14,278,215.87 - Step 6: Final answer
x = 10,024,152.99
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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.