Finding the Fourth Proportional to 30,624,570.34, 42,261,374.94 and 16,686,039.99
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Solution
The fourth proportional to 30,624,570.34, 42,261,374.94 and 16,686,039.99 is: 23,026,445.26
Step by Step Solution
- Step 1: Write the proportion equation
30,624,570.34 : 42,261,374.94 = 16,686,039.99 : x - Step 2: Convert to fraction form
30,624,570.34/42,261,374.94 = 16,686,039.99/x - Step 3: Cross multiply
30,624,570.34x = 42,261,374.94 × 16,686,039.99 - Step 4: Simplify right side
30,624,570.34x = 705,174,992,412,305.62 - Step 5: Solve for x
x = 705,174,992,412,305.62/30,624,570.34 - Step 6: Final answer
x = 23,026,445.26
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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.