Finding the Fourth Proportional to 10,254,763.20, 15,361,869.60 and 8,994,014.40
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Solution
The fourth proportional to 10,254,763.20, 15,361,869.60 and 8,994,014.40 is: 13,473,239.09
Step by Step Solution
- Step 1: Write the proportion equation
10,254,763.20 : 15,361,869.60 = 8,994,014.40 : x - Step 2: Convert to fraction form
10,254,763.20/15,361,869.60 = 8,994,014.40/x - Step 3: Cross multiply
10,254,763.20x = 15,361,869.60 × 8,994,014.40 - Step 4: Simplify right side
10,254,763.20x = 138,164,876,393,322.25 - Step 5: Solve for x
x = 138,164,876,393,322.25/10,254,763.20 - Step 6: Final answer
x = 13,473,239.09
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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.