Finding the Fourth Proportional to 77,555,301.80, 116,332,952.70 and 65,611,365.80
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Solution
The fourth proportional to 77,555,301.80, 116,332,952.70 and 65,611,365.80 is: 98,417,048.70
Step by Step Solution
- Step 1: Write the proportion equation
77,555,301.80 : 116,332,952.70 = 65,611,365.80 : x - Step 2: Convert to fraction form
77,555,301.80/116,332,952.70 = 65,611,365.80/x - Step 3: Cross multiply
77,555,301.80x = 116,332,952.70 × 65,611,365.80 - Step 4: Simplify right side
77,555,301.80x = 7,632,763,914,193,798 - Step 5: Solve for x
x = 7,632,763,914,193,798/77,555,301.80 - Step 6: Final answer
x = 98,417,048.70
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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.