Finding the Fourth Proportional to 128,873,538.04, 193,055,214.13 and 112,717,731.64
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Solution
The fourth proportional to 128,873,538.04, 193,055,214.13 and 112,717,731.64 is: 168,853,483.41
Step by Step Solution
- Step 1: Write the proportion equation
128,873,538.04 : 193,055,214.13 = 112,717,731.64 : x - Step 2: Convert to fraction form
128,873,538.04/193,055,214.13 = 112,717,731.64/x - Step 3: Cross multiply
128,873,538.04x = 193,055,214.13 × 112,717,731.64 - Step 4: Simplify right side
128,873,538.04x = 21,760,745,818,008,076 - Step 5: Solve for x
x = 21,760,745,818,008,076/128,873,538.04 - Step 6: Final answer
x = 168,853,483.41
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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.