Finding the Fourth Proportional to 13,106,851.20, 19,660,276.80 and 8,823,830.40
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Solution
The fourth proportional to 13,106,851.20, 19,660,276.80 and 8,823,830.40 is: 13,235,745.60
Step by Step Solution
- Step 1: Write the proportion equation
13,106,851.20 : 19,660,276.80 = 8,823,830.40 : x - Step 2: Convert to fraction form
13,106,851.20/19,660,276.80 = 8,823,830.40/x - Step 3: Cross multiply
13,106,851.20x = 19,660,276.80 × 8,823,830.40 - Step 4: Simplify right side
13,106,851.20x = 173,478,948,100,254.72 - Step 5: Solve for x
x = 173,478,948,100,254.72/13,106,851.20 - Step 6: Final answer
x = 13,235,745.60
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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.