Finding the Fourth Proportional to 118,112,387.20, 177,168,580.80 and 106,774,979.20
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Solution
The fourth proportional to 118,112,387.20, 177,168,580.80 and 106,774,979.20 is: 160,162,468.80
Step by Step Solution
- Step 1: Write the proportion equation
118,112,387.20 : 177,168,580.80 = 106,774,979.20 : x - Step 2: Convert to fraction form
118,112,387.20/177,168,580.80 = 106,774,979.20/x - Step 3: Cross multiply
118,112,387.20x = 177,168,580.80 × 106,774,979.20 - Step 4: Simplify right side
118,112,387.20x = 18,917,171,529,813,520 - Step 5: Solve for x
x = 18,917,171,529,813,520/118,112,387.20 - Step 6: Final answer
x = 160,162,468.80
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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.