Finding the Fourth Proportional to 2,122,457.19, 2,930,811.43 and 2,053,823.90
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Solution
The fourth proportional to 2,122,457.19, 2,930,811.43 and 2,053,823.90 is: 2,836,038.62
Step by Step Solution
- Step 1: Write the proportion equation
2,122,457.19 : 2,930,811.43 = 2,053,823.90 : x - Step 2: Convert to fraction form
2,122,457.19/2,930,811.43 = 2,053,823.90/x - Step 3: Cross multiply
2,122,457.19x = 2,930,811.43 × 2,053,823.90 - Step 4: Simplify right side
2,122,457.19x = 6,019,370,551,879.79 - Step 5: Solve for x
x = 6,019,370,551,879.79/2,122,457.19 - Step 6: Final answer
x = 2,836,038.62
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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.