Finding the Fourth Proportional to 76,626,089.20, 114,939,133.80 and 40,220,412.40
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Solution
The fourth proportional to 76,626,089.20, 114,939,133.80 and 40,220,412.40 is: 60,330,618.60
Step by Step Solution
- Step 1: Write the proportion equation
76,626,089.20 : 114,939,133.80 = 40,220,412.40 : x - Step 2: Convert to fraction form
76,626,089.20/114,939,133.80 = 40,220,412.40/x - Step 3: Cross multiply
76,626,089.20x = 114,939,133.80 × 40,220,412.40 - Step 4: Simplify right side
76,626,089.20x = 4,622,899,362,334,779 - Step 5: Solve for x
x = 4,622,899,362,334,779/76,626,089.20 - Step 6: Final answer
x = 60,330,618.60
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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.