Finding the Fourth Proportional to 5,286,107.74, 7,294,243.65 and 2,931,246.28
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Solution
The fourth proportional to 5,286,107.74, 7,294,243.65 and 2,931,246.28 is: 4,044,795.46
Step by Step Solution
- Step 1: Write the proportion equation
5,286,107.74 : 7,294,243.65 = 2,931,246.28 : x - Step 2: Convert to fraction form
5,286,107.74/7,294,243.65 = 2,931,246.28/x - Step 3: Cross multiply
5,286,107.74x = 7,294,243.65 × 2,931,246.28 - Step 4: Simplify right side
5,286,107.74x = 21,381,224,564,476.12 - Step 5: Solve for x
x = 21,381,224,564,476.12/5,286,107.74 - Step 6: Final answer
x = 4,044,795.46
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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.