Finding the Fourth Proportional to 312,237,882.91, 430,888,784.84 and 171,086,673.48
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Solution
The fourth proportional to 312,237,882.91, 430,888,784.84 and 171,086,673.48 is: 236,099,886.89
Step by Step Solution
- Step 1: Write the proportion equation
312,237,882.91 : 430,888,784.84 = 171,086,673.48 : x - Step 2: Convert to fraction form
312,237,882.91/430,888,784.84 = 171,086,673.48/x - Step 3: Cross multiply
312,237,882.91x = 430,888,784.84 × 171,086,673.48 - Step 4: Simplify right side
312,237,882.91x = 73,719,328,838,115,040 - Step 5: Solve for x
x = 73,719,328,838,115,040/312,237,882.91 - Step 6: Final answer
x = 236,099,886.89
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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.