Finding the Fourth Proportional to 10,651,781.40, 15,968,340.90 and 6,393,643.80
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Solution
The fourth proportional to 10,651,781.40, 15,968,340.90 and 6,393,643.80 is: 9,584,864.72
Step by Step Solution
- Step 1: Write the proportion equation
10,651,781.40 : 15,968,340.90 = 6,393,643.80 : x - Step 2: Convert to fraction form
10,651,781.40/15,968,340.90 = 6,393,643.80/x - Step 3: Cross multiply
10,651,781.40x = 15,968,340.90 × 6,393,643.80 - Step 4: Simplify right side
10,651,781.40x = 102,095,883,791,571.42 - Step 5: Solve for x
x = 102,095,883,791,571.42/10,651,781.40 - Step 6: Final answer
x = 9,584,864.72
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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.