Finding the Fourth Proportional to 19,946,412.20, 29,844,968.70 and 13,227,948.20
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Solution
The fourth proportional to 19,946,412.20, 29,844,968.70 and 13,227,948.20 is: 19,792,416.60
Step by Step Solution
- Step 1: Write the proportion equation
19,946,412.20 : 29,844,968.70 = 13,227,948.20 : x - Step 2: Convert to fraction form
19,946,412.20/29,844,968.70 = 13,227,948.20/x - Step 3: Cross multiply
19,946,412.20x = 29,844,968.70 × 13,227,948.20 - Step 4: Simplify right side
19,946,412.20x = 394,787,699,994,221.31 - Step 5: Solve for x
x = 394,787,699,994,221.31/19,946,412.20 - Step 6: Final answer
x = 19,792,416.60
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1.5x scale
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.