Finding the Fourth Proportional to 272,573,731.80, 408,860,597.70 and 126,958,897.80
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Solution
The fourth proportional to 272,573,731.80, 408,860,597.70 and 126,958,897.80 is: 190,438,346.70
Step by Step Solution
- Step 1: Write the proportion equation
272,573,731.80 : 408,860,597.70 = 126,958,897.80 : x - Step 2: Convert to fraction form
272,573,731.80/408,860,597.70 = 126,958,897.80/x - Step 3: Cross multiply
272,573,731.80x = 408,860,597.70 × 126,958,897.80 - Step 4: Simplify right side
272,573,731.80x = 51,908,490,837,841,216 - Step 5: Solve for x
x = 51,908,490,837,841,216/272,573,731.80 - Step 6: Final answer
x = 190,438,346.70
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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.