Finding the Fourth Proportional to 7,217,487.99, 9,960,133.14 and 3,954,426.35
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Solution
The fourth proportional to 7,217,487.99, 9,960,133.14 and 3,954,426.35 is: 5,457,108.20
Step by Step Solution
- Step 1: Write the proportion equation
7,217,487.99 : 9,960,133.14 = 3,954,426.35 : x - Step 2: Convert to fraction form
7,217,487.99/9,960,133.14 = 3,954,426.35/x - Step 3: Cross multiply
7,217,487.99x = 9,960,133.14 × 3,954,426.35 - Step 4: Simplify right side
7,217,487.99x = 39,386,612,888,523.58 - Step 5: Solve for x
x = 39,386,612,888,523.58/7,217,487.99 - Step 6: Final answer
x = 5,457,108.20
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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.