Finding the Fourth Proportional to 85,815,244.80, 128,722,867.20 and 58,605,465.60
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Solution
The fourth proportional to 85,815,244.80, 128,722,867.20 and 58,605,465.60 is: 87,908,198.40
Step by Step Solution
- Step 1: Write the proportion equation
85,815,244.80 : 128,722,867.20 = 58,605,465.60 : x - Step 2: Convert to fraction form
85,815,244.80/128,722,867.20 = 58,605,465.60/x - Step 3: Cross multiply
85,815,244.80x = 128,722,867.20 × 58,605,465.60 - Step 4: Simplify right side
85,815,244.80x = 7,543,863,565,622,969 - Step 5: Solve for x
x = 7,543,863,565,622,969/85,815,244.80 - Step 6: Final answer
x = 87,908,198.40
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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.