Finding the Fourth Proportional to 13,652,920.64, 18,840,669.60 and 7,541,217.92
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Solution
The fourth proportional to 13,652,920.64, 18,840,669.60 and 7,541,217.92 is: 10,406,681.40
Step by Step Solution
- Step 1: Write the proportion equation
13,652,920.64 : 18,840,669.60 = 7,541,217.92 : x - Step 2: Convert to fraction form
13,652,920.64/18,840,669.60 = 7,541,217.92/x - Step 3: Cross multiply
13,652,920.64x = 18,840,669.60 × 7,541,217.92 - Step 4: Simplify right side
13,652,920.64x = 142,081,595,212,319.25 - Step 5: Solve for x
x = 142,081,595,212,319.25/13,652,920.64 - Step 6: Final answer
x = 10,406,681.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.