Finding the Fourth Proportional to 398,701,149.20, 598,163,698.20 and 194,235,894.80
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Solution
The fourth proportional to 398,701,149.20, 598,163,698.20 and 194,235,894.80 is: 291,408,392.95
Step by Step Solution
- Step 1: Write the proportion equation
398,701,149.20 : 598,163,698.20 = 194,235,894.80 : x - Step 2: Convert to fraction form
398,701,149.20/598,163,698.20 = 194,235,894.80/x - Step 3: Cross multiply
398,701,149.20x = 598,163,698.20 × 194,235,894.80 - Step 4: Simplify right side
398,701,149.20x = 116,184,861,156,754,160 - Step 5: Solve for x
x = 116,184,861,156,754,160/398,701,149.20 - Step 6: Final answer
x = 291,408,392.95
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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.