Finding the Fourth Proportional to 39,872,043, 55,023,441.36 and 21,537,328.56
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Solution
The fourth proportional to 39,872,043, 55,023,441.36 and 21,537,328.56 is: 29,721,525.31
Step by Step Solution
- Step 1: Write the proportion equation
39,872,043 : 55,023,441.36 = 21,537,328.56 : x - Step 2: Convert to fraction form
39,872,043/55,023,441.36 = 21,537,328.56/x - Step 3: Cross multiply
39,872,043x = 55,023,441.36 × 21,537,328.56 - Step 4: Simplify right side
39,872,043x = 1,185,057,935,072,213.25 - Step 5: Solve for x
x = 1,185,057,935,072,213.25/39,872,043 - Step 6: Final answer
x = 29,721,525.31
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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.