Finding the Fourth Proportional to 13,236,460.80, 19,854,691.20 and 8,197,612.80
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Solution
The fourth proportional to 13,236,460.80, 19,854,691.20 and 8,197,612.80 is: 12,296,419.20
Step by Step Solution
- Step 1: Write the proportion equation
13,236,460.80 : 19,854,691.20 = 8,197,612.80 : x - Step 2: Convert to fraction form
13,236,460.80/19,854,691.20 = 8,197,612.80/x - Step 3: Cross multiply
13,236,460.80x = 19,854,691.20 × 8,197,612.80 - Step 4: Simplify right side
13,236,460.80x = 162,761,070,721,167.34 - Step 5: Solve for x
x = 162,761,070,721,167.34/13,236,460.80 - Step 6: Final answer
x = 12,296,419.20
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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.