Finding the Fourth Proportional to 69,735,463.38, 104,618,327.31 and 21,212,056.05
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Solution
The fourth proportional to 69,735,463.38, 104,618,327.31 and 21,212,056.05 is: 31,822,686.98
Step by Step Solution
- Step 1: Write the proportion equation
69,735,463.38 : 104,618,327.31 = 21,212,056.05 : x - Step 2: Convert to fraction form
69,735,463.38/104,618,327.31 = 21,212,056.05/x - Step 3: Cross multiply
69,735,463.38x = 104,618,327.31 × 21,212,056.05 - Step 4: Simplify right side
69,735,463.38x = 2,219,169,822,756,965.75 - Step 5: Solve for x
x = 2,219,169,822,756,965.75/69,735,463.38 - Step 6: Final answer
x = 31,822,686.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.