Finding the Fourth Proportional to 31,299,201.94, 43,142,991.09 and 24,672,985.54
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Solution
The fourth proportional to 31,299,201.94, 43,142,991.09 and 24,672,985.54 is: 34,009,378.17
Step by Step Solution
- Step 1: Write the proportion equation
31,299,201.94 : 43,142,991.09 = 24,672,985.54 : x - Step 2: Convert to fraction form
31,299,201.94/43,142,991.09 = 24,672,985.54/x - Step 3: Cross multiply
31,299,201.94x = 43,142,991.09 × 24,672,985.54 - Step 4: Simplify right side
31,299,201.94x = 1,064,466,395,315,918.88 - Step 5: Solve for x
x = 1,064,466,395,315,918.88/31,299,201.94 - Step 6: Final answer
x = 34,009,378.17
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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.