Finding the Fourth Proportional to 14,366,420.28, 19,826,077.86 and 7,840,469.52
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Solution
The fourth proportional to 14,366,420.28, 19,826,077.86 and 7,840,469.52 is: 10,820,075.99
Step by Step Solution
- Step 1: Write the proportion equation
14,366,420.28 : 19,826,077.86 = 7,840,469.52 : x - Step 2: Convert to fraction form
14,366,420.28/19,826,077.86 = 7,840,469.52/x - Step 3: Cross multiply
14,366,420.28x = 19,826,077.86 × 7,840,469.52 - Step 4: Simplify right side
14,366,420.28x = 155,445,759,162,476.81 - Step 5: Solve for x
x = 155,445,759,162,476.81/14,366,420.28 - Step 6: Final answer
x = 10,820,075.99
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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.