Finding the Fourth Proportional to 139,245,281.36, 192,163,674.17 and 83,499,777.66
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Solution
The fourth proportional to 139,245,281.36, 192,163,674.17 and 83,499,777.66 is: 115,232,802.94
Step by Step Solution
- Step 1: Write the proportion equation
139,245,281.36 : 192,163,674.17 = 83,499,777.66 : x - Step 2: Convert to fraction form
139,245,281.36/192,163,674.17 = 83,499,777.66/x - Step 3: Cross multiply
139,245,281.36x = 192,163,674.17 × 83,499,777.66 - Step 4: Simplify right side
139,245,281.36x = 16,045,624,067,106,184 - Step 5: Solve for x
x = 16,045,624,067,106,184/139,245,281.36 - Step 6: Final answer
x = 115,232,802.94
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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.