Finding the Fourth Proportional to 398,701,063.20, 598,163,569.20 and 194,235,808.80
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Solution
The fourth proportional to 398,701,063.20, 598,163,569.20 and 194,235,808.80 is: 291,408,263.94
Step by Step Solution
- Step 1: Write the proportion equation
398,701,063.20 : 598,163,569.20 = 194,235,808.80 : x - Step 2: Convert to fraction form
398,701,063.20/598,163,569.20 = 194,235,808.80/x - Step 3: Cross multiply
398,701,063.20x = 598,163,569.20 × 194,235,808.80 - Step 4: Simplify right side
398,701,063.20x = 116,184,784,658,256,784 - Step 5: Solve for x
x = 116,184,784,658,256,784/398,701,063.20 - Step 6: Final answer
x = 291,408,263.94
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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.