Finding the Fourth Proportional to 312,239,906.06, 430,891,575.94 and 171,088,698.91
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Solution
The fourth proportional to 312,239,906.06, 430,891,575.94 and 171,088,698.91 is: 236,102,681.52
Step by Step Solution
- Step 1: Write the proportion equation
312,239,906.06 : 430,891,575.94 = 171,088,698.91 : x - Step 2: Convert to fraction form
312,239,906.06/430,891,575.94 = 171,088,698.91/x - Step 3: Cross multiply
312,239,906.06x = 430,891,575.94 × 171,088,698.91 - Step 4: Simplify right side
312,239,906.06x = 73,720,679,097,839,248 - Step 5: Solve for x
x = 73,720,679,097,839,248/312,239,906.06 - Step 6: Final answer
x = 236,102,681.52
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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.