Finding the Fourth Proportional to 127,127,520.90, 190,691,924.12 and 39,681,707.63
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Solution
The fourth proportional to 127,127,520.90, 190,691,924.12 and 39,681,707.63 is: 59,522,762.07
Step by Step Solution
- Step 1: Write the proportion equation
127,127,520.90 : 190,691,924.12 = 39,681,707.63 : x - Step 2: Convert to fraction form
127,127,520.90/190,691,924.12 = 39,681,707.63/x - Step 3: Cross multiply
127,127,520.90x = 190,691,924.12 × 39,681,707.63 - Step 4: Simplify right side
127,127,520.90x = 7,566,981,179,328,924 - Step 5: Solve for x
x = 7,566,981,179,328,924/127,127,520.90 - Step 6: Final answer
x = 59,522,762.07
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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.