Finding the Fourth Proportional to 10,255,766.44, 14,157,315.50 and 6,390,197.48
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Solution
The fourth proportional to 10,255,766.44, 14,157,315.50 and 6,390,197.48 is: 8,821,187.80
Step by Step Solution
- Step 1: Write the proportion equation
10,255,766.44 : 14,157,315.50 = 6,390,197.48 : x - Step 2: Convert to fraction form
10,255,766.44/14,157,315.50 = 6,390,197.48/x - Step 3: Cross multiply
10,255,766.44x = 14,157,315.50 × 6,390,197.48 - Step 4: Simplify right side
10,255,766.44x = 90,468,041,831,664.95 - Step 5: Solve for x
x = 90,468,041,831,664.95/10,255,766.44 - Step 6: Final answer
x = 8,821,187.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.