Finding the Fourth Proportional to 19,946,729.60, 29,921,649.60 and 8,587,548.80
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Solution
The fourth proportional to 19,946,729.60, 29,921,649.60 and 8,587,548.80 is: 12,881,992.75
Step by Step Solution
- Step 1: Write the proportion equation
19,946,729.60 : 29,921,649.60 = 8,587,548.80 : x - Step 2: Convert to fraction form
19,946,729.60/29,921,649.60 = 8,587,548.80/x - Step 3: Cross multiply
19,946,729.60x = 29,921,649.60 × 8,587,548.80 - Step 4: Simplify right side
19,946,729.60x = 256,953,626,116,500.50 - Step 5: Solve for x
x = 256,953,626,116,500.50/19,946,729.60 - Step 6: Final answer
x = 12,881,992.75
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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.