Finding the Fourth Proportional to 75,133,659.40, 112,837,346.70 and 65,727,809.80
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Solution
The fourth proportional to 75,133,659.40, 112,837,346.70 and 65,727,809.80 is: 98,711,439.34
Step by Step Solution
- Step 1: Write the proportion equation
75,133,659.40 : 112,837,346.70 = 65,727,809.80 : x - Step 2: Convert to fraction form
75,133,659.40/112,837,346.70 = 65,727,809.80/x - Step 3: Cross multiply
75,133,659.40x = 112,837,346.70 × 65,727,809.80 - Step 4: Simplify right side
75,133,659.40x = 7,416,551,662,234,258 - Step 5: Solve for x
x = 7,416,551,662,234,258/75,133,659.40 - Step 6: Final answer
x = 98,711,439.34
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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.