Finding the Fourth Proportional to 147,191,202.49, 203,125,202.75 and 81,114,071.59
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Solution
The fourth proportional to 147,191,202.49, 203,125,202.75 and 81,114,071.59 is: 111,938,159.07
Step by Step Solution
- Step 1: Write the proportion equation
147,191,202.49 : 203,125,202.75 = 81,114,071.59 : x - Step 2: Convert to fraction form
147,191,202.49/203,125,202.75 = 81,114,071.59/x - Step 3: Cross multiply
147,191,202.49x = 203,125,202.75 × 81,114,071.59 - Step 4: Simplify right side
147,191,202.49x = 16,476,312,238,053,456 - Step 5: Solve for x
x = 16,476,312,238,053,456/147,191,202.49 - Step 6: Final answer
x = 111,938,159.07
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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.