Finding the Fourth Proportional to 302,319,451.20, 453,479,176.80 and 194,735,553.60
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Solution
The fourth proportional to 302,319,451.20, 453,479,176.80 and 194,735,553.60 is: 292,103,330.40
Step by Step Solution
- Step 1: Write the proportion equation
302,319,451.20 : 453,479,176.80 = 194,735,553.60 : x - Step 2: Convert to fraction form
302,319,451.20/453,479,176.80 = 194,735,553.60/x - Step 3: Cross multiply
302,319,451.20x = 453,479,176.80 × 194,735,553.60 - Step 4: Simplify right side
302,319,451.20x = 88,308,518,540,220,272 - Step 5: Solve for x
x = 88,308,518,540,220,272/302,319,451.20 - Step 6: Final answer
x = 292,103,330.40
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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.