Finding the Fourth Proportional to 398,607,416.20, 597,911,124.30 and 362,256,851.80
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Solution
The fourth proportional to 398,607,416.20, 597,911,124.30 and 362,256,851.80 is: 543,385,277.70
Step by Step Solution
- Step 1: Write the proportion equation
398,607,416.20 : 597,911,124.30 = 362,256,851.80 : x - Step 2: Convert to fraction form
398,607,416.20/597,911,124.30 = 362,256,851.80/x - Step 3: Cross multiply
398,607,416.20x = 597,911,124.30 × 362,256,851.80 - Step 4: Simplify right side
398,607,416.20x = 216,597,401,545,116,480 - Step 5: Solve for x
x = 216,597,401,545,116,480/398,607,416.20 - Step 6: Final answer
x = 543,385,277.70
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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.