Finding the Fourth Proportional to 216,904,159.88, 299,326,652.84 and 117,784,021.88
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Solution
The fourth proportional to 216,904,159.88, 299,326,652.84 and 117,784,021.88 is: 162,541,359.50
Step by Step Solution
- Step 1: Write the proportion equation
216,904,159.88 : 299,326,652.84 = 117,784,021.88 : x - Step 2: Convert to fraction form
216,904,159.88/299,326,652.84 = 117,784,021.88/x - Step 3: Cross multiply
216,904,159.88x = 299,326,652.84 × 117,784,021.88 - Step 4: Simplify right side
216,904,159.88x = 35,255,897,027,373,720 - Step 5: Solve for x
x = 35,255,897,027,373,720/216,904,159.88 - Step 6: Final answer
x = 162,541,359.50
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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.