Finding the Fourth Proportional to 10,269,706.40, 14,172,637.68 and 5,686,027.76
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Solution
The fourth proportional to 10,269,706.40, 14,172,637.68 and 5,686,027.76 is: 7,846,963.50
Step by Step Solution
- Step 1: Write the proportion equation
10,269,706.40 : 14,172,637.68 = 5,686,027.76 : x - Step 2: Convert to fraction form
10,269,706.40/14,172,637.68 = 5,686,027.76/x - Step 3: Cross multiply
10,269,706.40x = 14,172,637.68 × 5,686,027.76 - Step 4: Simplify right side
10,269,706.40x = 80,586,011,280,901.98 - Step 5: Solve for x
x = 80,586,011,280,901.98/10,269,706.40 - Step 6: Final answer
x = 7,846,963.50
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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.