Finding the Fourth Proportional to 7,480,129.60, 11,220,197.47 and 1,800,353.91
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Solution
The fourth proportional to 7,480,129.60, 11,220,197.47 and 1,800,353.91 is: 2,700,531.60
Step by Step Solution
- Step 1: Write the proportion equation
7,480,129.60 : 11,220,197.47 = 1,800,353.91 : x - Step 2: Convert to fraction form
7,480,129.60/11,220,197.47 = 1,800,353.91/x - Step 3: Cross multiply
7,480,129.60x = 11,220,197.47 × 1,800,353.91 - Step 4: Simplify right side
7,480,129.60x = 20,200,326,363,080.95 - Step 5: Solve for x
x = 20,200,326,363,080.95/7,480,129.60 - Step 6: Final answer
x = 2,700,531.60
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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.