Finding the Fourth Proportional to 3,896,485.99, 5,377,316.73 and 2,177,606.45
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Solution
The fourth proportional to 3,896,485.99, 5,377,316.73 and 2,177,606.45 is: 3,005,189.71
Step by Step Solution
- Step 1: Write the proportion equation
3,896,485.99 : 5,377,316.73 = 2,177,606.45 : x - Step 2: Convert to fraction form
3,896,485.99/5,377,316.73 = 2,177,606.45/x - Step 3: Cross multiply
3,896,485.99x = 5,377,316.73 × 2,177,606.45 - Step 4: Simplify right side
3,896,485.99x = 11,709,679,600,218.18 - Step 5: Solve for x
x = 11,709,679,600,218.18/3,896,485.99 - Step 6: Final answer
x = 3,005,189.71
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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.