Finding the Fourth Proportional to 398,701,099.20, 598,163,623.20 and 194,235,844.80
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Solution
The fourth proportional to 398,701,099.20, 598,163,623.20 and 194,235,844.80 is: 291,408,317.95
Step by Step Solution
- Step 1: Write the proportion equation
398,701,099.20 : 598,163,623.20 = 194,235,844.80 : x - Step 2: Convert to fraction form
398,701,099.20/598,163,623.20 = 194,235,844.80/x - Step 3: Cross multiply
398,701,099.20x = 598,163,623.20 × 194,235,844.80 - Step 4: Simplify right side
398,701,099.20x = 116,184,816,680,880,896 - Step 5: Solve for x
x = 116,184,816,680,880,896/398,701,099.20 - Step 6: Final answer
x = 291,408,317.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.