Finding the Fourth Proportional to 3,123,173.81, 4,308,248.76 and 1,816,282.76
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Solution
The fourth proportional to 3,123,173.81, 4,308,248.76 and 1,816,282.76 is: 2,505,463.49
Step by Step Solution
- Step 1: Write the proportion equation
3,123,173.81 : 4,308,248.76 = 1,816,282.76 : x - Step 2: Convert to fraction form
3,123,173.81/4,308,248.76 = 1,816,282.76/x - Step 3: Cross multiply
3,123,173.81x = 4,308,248.76 × 1,816,282.76 - Step 4: Simplify right side
3,123,173.81x = 7,824,997,927,038.13 - Step 5: Solve for x
x = 7,824,997,927,038.13/3,123,173.81 - Step 6: Final answer
x = 2,505,463.49
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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.