Finding the Fourth Proportional to 12,292,739.60, 18,453,106.20 and 7,246,893.20
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Solution
The fourth proportional to 12,292,739.60, 18,453,106.20 and 7,246,893.20 is: 10,878,591.28
Step by Step Solution
- Step 1: Write the proportion equation
12,292,739.60 : 18,453,106.20 = 7,246,893.20 : x - Step 2: Convert to fraction form
12,292,739.60/18,453,106.20 = 7,246,893.20/x - Step 3: Cross multiply
12,292,739.60x = 18,453,106.20 × 7,246,893.20 - Step 4: Simplify right side
12,292,739.60x = 133,727,689,839,657.84 - Step 5: Solve for x
x = 133,727,689,839,657.84/12,292,739.60 - Step 6: Final answer
x = 10,878,591.28
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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.