Finding the Fourth Proportional to 21,692,947.36, 29,935,266.96 and 11,903,153.44
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Solution
The fourth proportional to 21,692,947.36, 29,935,266.96 and 11,903,153.44 is: 16,425,802.82
Step by Step Solution
- Step 1: Write the proportion equation
21,692,947.36 : 29,935,266.96 = 11,903,153.44 : x - Step 2: Convert to fraction form
21,692,947.36/29,935,266.96 = 11,903,153.44/x - Step 3: Cross multiply
21,692,947.36x = 29,935,266.96 × 11,903,153.44 - Step 4: Simplify right side
21,692,947.36x = 356,324,075,892,242.31 - Step 5: Solve for x
x = 356,324,075,892,242.31/21,692,947.36 - Step 6: Final answer
x = 16,425,802.82
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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.