Finding the Fourth Proportional to 264,635,207.40, 396,952,811.10 and 191,508,925.80
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Solution
The fourth proportional to 264,635,207.40, 396,952,811.10 and 191,508,925.80 is: 287,263,388.70
Step by Step Solution
- Step 1: Write the proportion equation
264,635,207.40 : 396,952,811.10 = 191,508,925.80 : x - Step 2: Convert to fraction form
264,635,207.40/396,952,811.10 = 191,508,925.80/x - Step 3: Cross multiply
264,635,207.40x = 396,952,811.10 × 191,508,925.80 - Step 4: Simplify right side
264,635,207.40x = 76,020,006,447,051,328 - Step 5: Solve for x
x = 76,020,006,447,051,328/264,635,207.40 - Step 6: Final answer
x = 287,263,388.70
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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.