Finding the Fourth Proportional to 112,124,043.80, 168,186,065.70 and 66,774,411.80
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Solution
The fourth proportional to 112,124,043.80, 168,186,065.70 and 66,774,411.80 is: 100,161,617.70
Step by Step Solution
- Step 1: Write the proportion equation
112,124,043.80 : 168,186,065.70 = 66,774,411.80 : x - Step 2: Convert to fraction form
112,124,043.80/168,186,065.70 = 66,774,411.80/x - Step 3: Cross multiply
112,124,043.80x = 168,186,065.70 × 66,774,411.80 - Step 4: Simplify right side
112,124,043.80x = 11,230,525,610,073,654 - Step 5: Solve for x
x = 11,230,525,610,073,654/112,124,043.80 - Step 6: Final answer
x = 100,161,617.70
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1.5x scale
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.