Finding the Fourth Proportional to 103,813,719.40, 155,720,579.10 and 27,144,497.80
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Solution
The fourth proportional to 103,813,719.40, 155,720,579.10 and 27,144,497.80 is: 40,716,746.70
Step by Step Solution
- Step 1: Write the proportion equation
103,813,719.40 : 155,720,579.10 = 27,144,497.80 : x - Step 2: Convert to fraction form
103,813,719.40/155,720,579.10 = 27,144,497.80/x - Step 3: Cross multiply
103,813,719.40x = 155,720,579.10 × 27,144,497.80 - Step 4: Simplify right side
103,813,719.40x = 4,226,956,916,794,676 - Step 5: Solve for x
x = 4,226,956,916,794,676/103,813,719.40 - Step 6: Final answer
x = 40,716,746.70
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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.