Finding the Fourth Proportional to 31,766,649.75, 47,670,131.93 and 13,570,981.99
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Solution
The fourth proportional to 31,766,649.75, 47,670,131.93 and 13,570,981.99 is: 20,365,084.35
Step by Step Solution
- Step 1: Write the proportion equation
31,766,649.75 : 47,670,131.93 = 13,570,981.99 : x - Step 2: Convert to fraction form
31,766,649.75/47,670,131.93 = 13,570,981.99/x - Step 3: Cross multiply
31,766,649.75x = 47,670,131.93 × 13,570,981.99 - Step 4: Simplify right side
31,766,649.75x = 646,930,501,695,923.75 - Step 5: Solve for x
x = 646,930,501,695,923.75/31,766,649.75 - Step 6: Final answer
x = 20,365,084.35
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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.