Finding the Fourth Proportional to 5,642,451.29, 7,788,966.21 and 3,809,392.31
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Solution
The fourth proportional to 5,642,451.29, 7,788,966.21 and 3,809,392.31 is: 5,258,570.51
Step by Step Solution
- Step 1: Write the proportion equation
5,642,451.29 : 7,788,966.21 = 3,809,392.31 : x - Step 2: Convert to fraction form
5,642,451.29/7,788,966.21 = 3,809,392.31/x - Step 3: Cross multiply
5,642,451.29x = 7,788,966.21 × 3,809,392.31 - Step 4: Simplify right side
5,642,451.29x = 29,671,227,944,279.02 - Step 5: Solve for x
x = 29,671,227,944,279.02/5,642,451.29 - Step 6: Final answer
x = 5,258,570.51
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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.