Finding the Fourth Proportional to 3,847,776.48, 5,310,088.08 and 2,128,869.12
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Solution
The fourth proportional to 3,847,776.48, 5,310,088.08 and 2,128,869.12 is: 2,937,925.99
Step by Step Solution
- Step 1: Write the proportion equation
3,847,776.48 : 5,310,088.08 = 2,128,869.12 : x - Step 2: Convert to fraction form
3,847,776.48/5,310,088.08 = 2,128,869.12/x - Step 3: Cross multiply
3,847,776.48x = 5,310,088.08 × 2,128,869.12 - Step 4: Simplify right side
3,847,776.48x = 11,304,482,537,992.09 - Step 5: Solve for x
x = 11,304,482,537,992.09/3,847,776.48 - Step 6: Final answer
x = 2,937,925.99
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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.