Finding the Fourth Proportional to 12,126,254.60, 18,178,622.79 and 4,448,133.32
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Solution
The fourth proportional to 12,126,254.60, 18,178,622.79 and 4,448,133.32 is: 6,668,253.33
Step by Step Solution
- Step 1: Write the proportion equation
12,126,254.60 : 18,178,622.79 = 4,448,133.32 : x - Step 2: Convert to fraction form
12,126,254.60/18,178,622.79 = 4,448,133.32/x - Step 3: Cross multiply
12,126,254.60x = 18,178,622.79 × 4,448,133.32 - Step 4: Simplify right side
12,126,254.60x = 80,860,937,653,017.25 - Step 5: Solve for x
x = 80,860,937,653,017.25/12,126,254.60 - Step 6: Final answer
x = 6,668,253.33
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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.