Finding the Fourth Proportional to 138,553,427.04, 190,185,241.74 and 122,521,180.67
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Solution
The fourth proportional to 138,553,427.04, 190,185,241.74 and 122,521,180.67 is: 168,178,592.63
Step by Step Solution
- Step 1: Write the proportion equation
138,553,427.04 : 190,185,241.74 = 122,521,180.67 : x - Step 2: Convert to fraction form
138,553,427.04/190,185,241.74 = 122,521,180.67/x - Step 3: Cross multiply
138,553,427.04x = 190,185,241.74 × 122,521,180.67 - Step 4: Simplify right side
138,553,427.04x = 23,301,720,363,043,240 - Step 5: Solve for x
x = 23,301,720,363,043,240/138,553,427.04 - Step 6: Final answer
x = 168,178,592.63
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.