Finding the Fourth Proportional to 19,946,894.20, 29,845,691.70 and 13,228,430.20
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Solution
The fourth proportional to 19,946,894.20, 29,845,691.70 and 13,228,430.20 is: 19,793,139.00
Step by Step Solution
- Step 1: Write the proportion equation
19,946,894.20 : 29,845,691.70 = 13,228,430.20 : x - Step 2: Convert to fraction form
19,946,894.20/29,845,691.70 = 13,228,430.20/x - Step 3: Cross multiply
19,946,894.20x = 29,845,691.70 × 13,228,430.20 - Step 4: Simplify right side
19,946,894.20x = 394,811,649,424,169.31 - Step 5: Solve for x
x = 394,811,649,424,169.31/19,946,894.20 - Step 6: Final answer
x = 19,793,139.00
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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.