Finding the Fourth Proportional to 10,368,026.40, 15,559,815.60 and 5,316,736.80
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Solution
The fourth proportional to 10,368,026.40, 15,559,815.60 and 5,316,736.80 is: 7,979,092.74
Step by Step Solution
- Step 1: Write the proportion equation
10,368,026.40 : 15,559,815.60 = 5,316,736.80 : x - Step 2: Convert to fraction form
10,368,026.40/15,559,815.60 = 5,316,736.80/x - Step 3: Cross multiply
10,368,026.40x = 15,559,815.60 × 5,316,736.80 - Step 4: Simplify right side
10,368,026.40x = 82,727,444,201,734.08 - Step 5: Solve for x
x = 82,727,444,201,734.08/10,368,026.40 - Step 6: Final answer
x = 7,979,092.74
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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.