Finding the Fourth Proportional to 15,672,128.60, 21,626,350.99 and 8,795,282.06
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Solution
The fourth proportional to 15,672,128.60, 21,626,350.99 and 8,795,282.06 is: 12,136,823.39
Step by Step Solution
- Step 1: Write the proportion equation
15,672,128.60 : 21,626,350.99 = 8,795,282.06 : x - Step 2: Convert to fraction form
15,672,128.60/21,626,350.99 = 8,795,282.06/x - Step 3: Cross multiply
15,672,128.60x = 21,626,350.99 × 8,795,282.06 - Step 4: Simplify right side
15,672,128.60x = 190,209,856,917,687.91 - Step 5: Solve for x
x = 190,209,856,917,687.91/15,672,128.60 - Step 6: Final answer
x = 12,136,823.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.