Finding the Fourth Proportional to 176,728,818.12, 264,911,334.63 and 78,406,828.75
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Solution
The fourth proportional to 176,728,818.12, 264,911,334.63 and 78,406,828.75 is: 117,529,545.37
Step by Step Solution
- Step 1: Write the proportion equation
176,728,818.12 : 264,911,334.63 = 78,406,828.75 : x - Step 2: Convert to fraction form
176,728,818.12/264,911,334.63 = 78,406,828.75/x - Step 3: Cross multiply
176,728,818.12x = 264,911,334.63 × 78,406,828.75 - Step 4: Simplify right side
176,728,818.12x = 20,770,857,648,268,356 - Step 5: Solve for x
x = 20,770,857,648,268,356/176,728,818.12 - Step 6: Final answer
x = 117,529,545.37
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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.