Finding the Fourth Proportional to 477,840,272.63, 659,452,718.21 and 289,676,497.60
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Solution
The fourth proportional to 477,840,272.63, 659,452,718.21 and 289,676,497.60 is: 399,773,658.02
Step by Step Solution
- Step 1: Write the proportion equation
477,840,272.63 : 659,452,718.21 = 289,676,497.60 : x - Step 2: Convert to fraction form
477,840,272.63/659,452,718.21 = 289,676,497.60/x - Step 3: Cross multiply
477,840,272.63x = 659,452,718.21 × 289,676,497.60 - Step 4: Simplify right side
477,840,272.63x = 191,027,953,740,775,552 - Step 5: Solve for x
x = 191,027,953,740,775,552/477,840,272.63 - Step 6: Final answer
x = 399,773,658.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.