Finding the Fourth Proportional to 3,643,430.36, 5,028,377.20 and 2,115,537.48
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Solution
The fourth proportional to 3,643,430.36, 5,028,377.20 and 2,115,537.48 is: 2,919,699.13
Step by Step Solution
- Step 1: Write the proportion equation
3,643,430.36 : 5,028,377.20 = 2,115,537.48 : x - Step 2: Convert to fraction form
3,643,430.36/5,028,377.20 = 2,115,537.48/x - Step 3: Cross multiply
3,643,430.36x = 5,028,377.20 × 2,115,537.48 - Step 4: Simplify right side
3,643,430.36x = 10,637,720,424,888.61 - Step 5: Solve for x
x = 10,637,720,424,888.61/3,643,430.36 - Step 6: Final answer
x = 2,919,699.13
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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.