Finding the Fourth Proportional to 131,022,427.97, 180,809,703.68 and 72,285,567.55
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Solution
The fourth proportional to 131,022,427.97, 180,809,703.68 and 72,285,567.55 is: 99,753,395.28
Step by Step Solution
- Step 1: Write the proportion equation
131,022,427.97 : 180,809,703.68 = 72,285,567.55 : x - Step 2: Convert to fraction form
131,022,427.97/180,809,703.68 = 72,285,567.55/x - Step 3: Cross multiply
131,022,427.97x = 180,809,703.68 × 72,285,567.55 - Step 4: Simplify right side
131,022,427.97x = 13,069,932,048,242,672 - Step 5: Solve for x
x = 13,069,932,048,242,672/131,022,427.97 - Step 6: Final answer
x = 99,753,395.28
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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.