Finding the Fourth Proportional to 354,296,064.80, 531,444,097.20 and 199,327,869.20
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Solution
The fourth proportional to 354,296,064.80, 531,444,097.20 and 199,327,869.20 is: 298,991,803.80
Step by Step Solution
- Step 1: Write the proportion equation
354,296,064.80 : 531,444,097.20 = 199,327,869.20 : x - Step 2: Convert to fraction form
354,296,064.80/531,444,097.20 = 199,327,869.20/x - Step 3: Cross multiply
354,296,064.80x = 531,444,097.20 × 199,327,869.20 - Step 4: Simplify right side
354,296,064.80x = 105,931,619,493,793,680 - Step 5: Solve for x
x = 105,931,619,493,793,680/354,296,064.80 - Step 6: Final answer
x = 298,991,803.80
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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.