Finding the Fourth Proportional to 398,639,101.80, 597,958,652.70 and 360,375,349.80
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Solution
The fourth proportional to 398,639,101.80, 597,958,652.70 and 360,375,349.80 is: 540,563,024.70
Step by Step Solution
- Step 1: Write the proportion equation
398,639,101.80 : 597,958,652.70 = 360,375,349.80 : x - Step 2: Convert to fraction form
398,639,101.80/597,958,652.70 = 360,375,349.80/x - Step 3: Cross multiply
398,639,101.80x = 597,958,652.70 × 360,375,349.80 - Step 4: Simplify right side
398,639,101.80x = 215,489,558,632,699,232 - Step 5: Solve for x
x = 215,489,558,632,699,232/398,639,101.80 - Step 6: Final answer
x = 540,563,024.70
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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.