Finding the Fourth Proportional to 6,743,612.80, 10,115,419.20 and 6,295,715.20
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Solution
The fourth proportional to 6,743,612.80, 10,115,419.20 and 6,295,715.20 is: 9,443,572.80
Step by Step Solution
- Step 1: Write the proportion equation
6,743,612.80 : 10,115,419.20 = 6,295,715.20 : x - Step 2: Convert to fraction form
6,743,612.80/10,115,419.20 = 6,295,715.20/x - Step 3: Cross multiply
6,743,612.80x = 10,115,419.20 × 6,295,715.20 - Step 4: Simplify right side
6,743,612.80x = 63,683,798,411,811.84 - Step 5: Solve for x
x = 63,683,798,411,811.84/6,743,612.80 - Step 6: Final answer
x = 9,443,572.80
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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.