Finding the Fourth Proportional to 3,869,926.24, 5,340,562.14 and 2,127,669.28
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Solution
The fourth proportional to 3,869,926.24, 5,340,562.14 and 2,127,669.28 is: 2,936,218.75
Step by Step Solution
- Step 1: Write the proportion equation
3,869,926.24 : 5,340,562.14 = 2,127,669.28 : x - Step 2: Convert to fraction form
3,869,926.24/5,340,562.14 = 2,127,669.28/x - Step 3: Cross multiply
3,869,926.24x = 5,340,562.14 × 2,127,669.28 - Step 4: Simplify right side
3,869,926.24x = 11,362,950,003,209.06 - Step 5: Solve for x
x = 11,362,950,003,209.06/3,869,926.24 - Step 6: Final answer
x = 2,936,218.75
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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.