Finding the Fourth Proportional to 11,679,789.12, 16,115,768.28 and 6,522,357.12
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Solution
The fourth proportional to 11,679,789.12, 16,115,768.28 and 6,522,357.12 is: 8,999,545.70
Step by Step Solution
- Step 1: Write the proportion equation
11,679,789.12 : 16,115,768.28 = 6,522,357.12 : x - Step 2: Convert to fraction form
11,679,789.12/16,115,768.28 = 6,522,357.12/x - Step 3: Cross multiply
11,679,789.12x = 16,115,768.28 × 6,522,357.12 - Step 4: Simplify right side
11,679,789.12x = 105,112,795,985,328.16 - Step 5: Solve for x
x = 105,112,795,985,328.16/11,679,789.12 - Step 6: Final answer
x = 8,999,545.70
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1.5x scale
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.