Finding the Fourth Proportional to 10,368,040.40, 15,559,836.60 and 5,316,750.80
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Solution
The fourth proportional to 10,368,040.40, 15,559,836.60 and 5,316,750.80 is: 7,979,113.75
Step by Step Solution
- Step 1: Write the proportion equation
10,368,040.40 : 15,559,836.60 = 5,316,750.80 : x - Step 2: Convert to fraction form
10,368,040.40/15,559,836.60 = 5,316,750.80/x - Step 3: Cross multiply
10,368,040.40x = 15,559,836.60 × 5,316,750.80 - Step 4: Simplify right side
10,368,040.40x = 82,727,773,690,919.28 - Step 5: Solve for x
x = 82,727,773,690,919.28/10,368,040.40 - Step 6: Final answer
x = 7,979,113.75
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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.