Finding the Fourth Proportional to 472,393,731.80, 708,590,597.70 and 242,811,219.80
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Solution
The fourth proportional to 472,393,731.80, 708,590,597.70 and 242,811,219.80 is: 364,216,829.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,731.80 : 708,590,597.70 = 242,811,219.80 : x - Step 2: Convert to fraction form
472,393,731.80/708,590,597.70 = 242,811,219.80/x - Step 3: Cross multiply
472,393,731.80x = 708,590,597.70 × 242,811,219.80 - Step 4: Simplify right side
472,393,731.80x = 172,053,747,366,348,096 - Step 5: Solve for x
x = 172,053,747,366,348,096/472,393,731.80 - Step 6: Final answer
x = 364,216,829.70
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1.5x scale
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.