Finding the Fourth Proportional to 10,359,356.80, 15,539,035.20 and 9,351,587.20
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Solution
The fourth proportional to 10,359,356.80, 15,539,035.20 and 9,351,587.20 is: 14,027,380.80
Step by Step Solution
- Step 1: Write the proportion equation
10,359,356.80 : 15,539,035.20 = 9,351,587.20 : x - Step 2: Convert to fraction form
10,359,356.80/15,539,035.20 = 9,351,587.20/x - Step 3: Cross multiply
10,359,356.80x = 15,539,035.20 × 9,351,587.20 - Step 4: Simplify right side
10,359,356.80x = 145,314,642,676,669.41 - Step 5: Solve for x
x = 145,314,642,676,669.41/10,359,356.80 - Step 6: Final answer
x = 14,027,380.80
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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.