Finding the Fourth Proportional to 39,727,971.94, 59,559,813.86 and 12,420,215.14
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Solution
The fourth proportional to 39,727,971.94, 59,559,813.86 and 12,420,215.14 is: 18,620,273.46
Step by Step Solution
- Step 1: Write the proportion equation
39,727,971.94 : 59,559,813.86 = 12,420,215.14 : x - Step 2: Convert to fraction form
39,727,971.94/59,559,813.86 = 12,420,215.14/x - Step 3: Cross multiply
39,727,971.94x = 59,559,813.86 × 12,420,215.14 - Step 4: Simplify right side
39,727,971.94x = 739,745,701,541,754.75 - Step 5: Solve for x
x = 739,745,701,541,754.75/39,727,971.94 - Step 6: Final answer
x = 18,620,273.46
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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.