Finding the Fourth Proportional to 5,702,073.88, 7,868,531.28 and 3,123,305.68
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Solution
The fourth proportional to 5,702,073.88, 7,868,531.28 and 3,123,305.68 is: 4,309,980.71
Step by Step Solution
- Step 1: Write the proportion equation
5,702,073.88 : 7,868,531.28 = 3,123,305.68 : x - Step 2: Convert to fraction form
5,702,073.88/7,868,531.28 = 3,123,305.68/x - Step 3: Cross multiply
5,702,073.88x = 7,868,531.28 × 3,123,305.68 - Step 4: Simplify right side
5,702,073.88x = 24,575,828,440,081.67 - Step 5: Solve for x
x = 24,575,828,440,081.67/5,702,073.88 - Step 6: Final answer
x = 4,309,980.71
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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.