Finding the Fourth Proportional to 398,608,327.80, 597,912,491.70 and 360,344,575.80
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Solution
The fourth proportional to 398,608,327.80, 597,912,491.70 and 360,344,575.80 is: 540,516,863.70
Step by Step Solution
- Step 1: Write the proportion equation
398,608,327.80 : 597,912,491.70 = 360,344,575.80 : x - Step 2: Convert to fraction form
398,608,327.80/597,912,491.70 = 360,344,575.80/x - Step 3: Cross multiply
398,608,327.80x = 597,912,491.70 × 360,344,575.80 - Step 4: Simplify right side
398,608,327.80x = 215,454,523,187,157,536 - Step 5: Solve for x
x = 215,454,523,187,157,536/398,608,327.80 - Step 6: Final answer
x = 540,516,863.70
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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.