Finding the Fourth Proportional to 147,191,202.21, 203,125,202.37 and 81,114,071.31
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Solution
The fourth proportional to 147,191,202.21, 203,125,202.37 and 81,114,071.31 is: 111,938,158.68
Step by Step Solution
- Step 1: Write the proportion equation
147,191,202.21 : 203,125,202.37 = 81,114,071.31 : x - Step 2: Convert to fraction form
147,191,202.21/203,125,202.37 = 81,114,071.31/x - Step 3: Cross multiply
147,191,202.21x = 203,125,202.37 × 81,114,071.31 - Step 4: Simplify right side
147,191,202.21x = 16,476,312,149,898,362 - Step 5: Solve for x
x = 16,476,312,149,898,362/147,191,202.21 - Step 6: Final answer
x = 111,938,158.68
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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.