Finding the Fourth Proportional to 39,905,459.92, 55,069,551 and 21,570,745.36
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Solution
The fourth proportional to 39,905,459.92, 55,069,551 and 21,570,745.36 is: 29,767,637.41
Step by Step Solution
- Step 1: Write the proportion equation
39,905,459.92 : 55,069,551 = 21,570,745.36 : x - Step 2: Convert to fraction form
39,905,459.92/55,069,551 = 21,570,745.36/x - Step 3: Cross multiply
39,905,459.92x = 55,069,551 × 21,570,745.36 - Step 4: Simplify right side
39,905,459.92x = 1,187,891,261,710,533.25 - Step 5: Solve for x
x = 1,187,891,261,710,533.25/39,905,459.92 - Step 6: Final answer
x = 29,767,637.41
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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.