Finding the Fourth Proportional to 5,211,981.97, 7,818,955.16 and 1,974,489.33
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Solution
The fourth proportional to 5,211,981.97, 7,818,955.16 and 1,974,489.33 is: 2,962,106.09
Step by Step Solution
- Step 1: Write the proportion equation
5,211,981.97 : 7,818,955.16 = 1,974,489.33 : x - Step 2: Convert to fraction form
5,211,981.97/7,818,955.16 = 1,974,489.33/x - Step 3: Cross multiply
5,211,981.97x = 7,818,955.16 × 1,974,489.33 - Step 4: Simplify right side
5,211,981.97x = 15,438,443,521,741.96 - Step 5: Solve for x
x = 15,438,443,521,741.96/5,211,981.97 - Step 6: Final answer
x = 2,962,106.09
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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.