Finding the Fourth Proportional to 77,278,616.20, 115,917,924.30 and 41,446,808.20
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Solution
The fourth proportional to 77,278,616.20, 115,917,924.30 and 41,446,808.20 is: 62,170,212.30
Step by Step Solution
- Step 1: Write the proportion equation
77,278,616.20 : 115,917,924.30 = 41,446,808.20 : x - Step 2: Convert to fraction form
77,278,616.20/115,917,924.30 = 41,446,808.20/x - Step 3: Cross multiply
77,278,616.20x = 115,917,924.30 × 41,446,808.20 - Step 4: Simplify right side
77,278,616.20x = 4,804,427,975,404,219 - Step 5: Solve for x
x = 4,804,427,975,404,219/77,278,616.20 - Step 6: Final answer
x = 62,170,212.30
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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.