Finding the Fourth Proportional to 112,331,952.60, 168,497,928.90 and 73,589,903.70
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Solution
The fourth proportional to 112,331,952.60, 168,497,928.90 and 73,589,903.70 is: 110,384,855.55
Step by Step Solution
- Step 1: Write the proportion equation
112,331,952.60 : 168,497,928.90 = 73,589,903.70 : x - Step 2: Convert to fraction form
112,331,952.60/168,497,928.90 = 73,589,903.70/x - Step 3: Cross multiply
112,331,952.60x = 168,497,928.90 × 73,589,903.70 - Step 4: Simplify right side
112,331,952.60x = 12,399,746,361,400,448 - Step 5: Solve for x
x = 12,399,746,361,400,448/112,331,952.60 - Step 6: Final answer
x = 110,384,855.55
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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.