Finding the Fourth Proportional to 134,577,782.49, 185,751,891.86 and 87,651,788.23
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Solution
The fourth proportional to 134,577,782.49, 185,751,891.86 and 87,651,788.23 is: 120,981,971.82
Step by Step Solution
- Step 1: Write the proportion equation
134,577,782.49 : 185,751,891.86 = 87,651,788.23 : x - Step 2: Convert to fraction form
134,577,782.49/185,751,891.86 = 87,651,788.23/x - Step 3: Cross multiply
134,577,782.49x = 185,751,891.86 × 87,651,788.23 - Step 4: Simplify right side
134,577,782.49x = 16,281,485,488,634,582 - Step 5: Solve for x
x = 16,281,485,488,634,582/134,577,782.49 - Step 6: Final answer
x = 120,981,971.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.