Finding the Fourth Proportional to 485,651,749.40, 728,477,624.10 and 330,683,553.80
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Solution
The fourth proportional to 485,651,749.40, 728,477,624.10 and 330,683,553.80 is: 496,025,330.70
Step by Step Solution
- Step 1: Write the proportion equation
485,651,749.40 : 728,477,624.10 = 330,683,553.80 : x - Step 2: Convert to fraction form
485,651,749.40/728,477,624.10 = 330,683,553.80/x - Step 3: Cross multiply
485,651,749.40x = 728,477,624.10 × 330,683,553.80 - Step 4: Simplify right side
485,651,749.40x = 240,895,569,601,168,544 - Step 5: Solve for x
x = 240,895,569,601,168,544/485,651,749.40 - Step 6: Final answer
x = 496,025,330.70
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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.