Finding the Fourth Proportional to 10,679,903.61, 14,738,337.75 and 5,785,125.70
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Solution
The fourth proportional to 10,679,903.61, 14,738,337.75 and 5,785,125.70 is: 7,983,511.80
Step by Step Solution
- Step 1: Write the proportion equation
10,679,903.61 : 14,738,337.75 = 5,785,125.70 : x - Step 2: Convert to fraction form
10,679,903.61/14,738,337.75 = 5,785,125.70/x - Step 3: Cross multiply
10,679,903.61x = 14,738,337.75 × 5,785,125.70 - Step 4: Simplify right side
10,679,903.61x = 85,263,136,492,805.17 - Step 5: Solve for x
x = 85,263,136,492,805.17/10,679,903.61 - Step 6: Final answer
x = 7,983,511.80
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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.