Finding the Fourth Proportional to 12,145,030.35, 18,220,739.40 and 4,364,730.02
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Solution
The fourth proportional to 12,145,030.35, 18,220,739.40 and 4,364,730.02 is: 6,548,242.85
Step by Step Solution
- Step 1: Write the proportion equation
12,145,030.35 : 18,220,739.40 = 4,364,730.02 : x - Step 2: Convert to fraction form
12,145,030.35/18,220,739.40 = 4,364,730.02/x - Step 3: Cross multiply
12,145,030.35x = 18,220,739.40 × 4,364,730.02 - Step 4: Simplify right side
12,145,030.35x = 79,528,608,154,673.08 - Step 5: Solve for x
x = 79,528,608,154,673.08/12,145,030.35 - Step 6: Final answer
x = 6,548,242.85
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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.