Finding the Fourth Proportional to 139,414,203.80, 209,121,305.70 and 124,347,851.45
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Solution
The fourth proportional to 139,414,203.80, 209,121,305.70 and 124,347,851.45 is: 186,521,777.18
Step by Step Solution
- Step 1: Write the proportion equation
139,414,203.80 : 209,121,305.70 = 124,347,851.45 : x - Step 2: Convert to fraction form
139,414,203.80/209,121,305.70 = 124,347,851.45/x - Step 3: Cross multiply
139,414,203.80x = 209,121,305.70 × 124,347,851.45 - Step 4: Simplify right side
139,414,203.80x = 26,003,785,056,213,636 - Step 5: Solve for x
x = 26,003,785,056,213,636/139,414,203.80 - Step 6: Final answer
x = 186,521,777.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.