Finding the Fourth Proportional to 10,768,756.60, 14,866,371.80 and 8,315,861.14
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Solution
The fourth proportional to 10,768,756.60, 14,866,371.80 and 8,315,861.14 is: 11,480,126.09
Step by Step Solution
- Step 1: Write the proportion equation
10,768,756.60 : 14,866,371.80 = 8,315,861.14 : x - Step 2: Convert to fraction form
10,768,756.60/14,866,371.80 = 8,315,861.14/x - Step 3: Cross multiply
10,768,756.60x = 14,866,371.80 × 8,315,861.14 - Step 4: Simplify right side
10,768,756.60x = 123,626,683,515,753.38 - Step 5: Solve for x
x = 123,626,683,515,753.38/10,768,756.60 - Step 6: Final answer
x = 11,480,126.09
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1.5x scale
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.