Finding the Fourth Proportional to 28,478,970, 42,701,231.70 and 11,186,470.08
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Solution
The fourth proportional to 28,478,970, 42,701,231.70 and 11,186,470.08 is: 16,772,939.85
Step by Step Solution
- Step 1: Write the proportion equation
28,478,970 : 42,701,231.70 = 11,186,470.08 : x - Step 2: Convert to fraction form
28,478,970/42,701,231.70 = 11,186,470.08/x - Step 3: Cross multiply
28,478,970x = 42,701,231.70 × 11,186,470.08 - Step 4: Simplify right side
28,478,970x = 477,676,050,791,197.56 - Step 5: Solve for x
x = 477,676,050,791,197.56/28,478,970 - Step 6: Final answer
x = 16,772,939.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.