Finding the Fourth Proportional to 398,701,148.20, 598,163,696.70 and 194,235,893.80
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Solution
The fourth proportional to 398,701,148.20, 598,163,696.70 and 194,235,893.80 is: 291,408,391.45
Step by Step Solution
- Step 1: Write the proportion equation
398,701,148.20 : 598,163,696.70 = 194,235,893.80 : x - Step 2: Convert to fraction form
398,701,148.20/598,163,696.70 = 194,235,893.80/x - Step 3: Cross multiply
398,701,148.20x = 598,163,696.70 × 194,235,893.80 - Step 4: Simplify right side
398,701,148.20x = 116,184,860,267,236,624 - Step 5: Solve for x
x = 116,184,860,267,236,624/398,701,148.20 - Step 6: Final answer
x = 291,408,391.45
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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.