Finding the Fourth Proportional to 9,781,544.40, 14,672,316.60 and 8,199,031.20
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Solution
The fourth proportional to 9,781,544.40, 14,672,316.60 and 8,199,031.20 is: 12,298,546.80
Step by Step Solution
- Step 1: Write the proportion equation
9,781,544.40 : 14,672,316.60 = 8,199,031.20 : x - Step 2: Convert to fraction form
9,781,544.40/14,672,316.60 = 8,199,031.20/x - Step 3: Cross multiply
9,781,544.40x = 14,672,316.60 × 8,199,031.20 - Step 4: Simplify right side
9,781,544.40x = 120,298,781,579,677.92 - Step 5: Solve for x
x = 120,298,781,579,677.92/9,781,544.40 - Step 6: Final answer
x = 12,298,546.80
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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.