Finding the Fourth Proportional to 213,904,331.55, 320,878,248.53 and 73,826,558.10
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Solution
The fourth proportional to 213,904,331.55, 320,878,248.53 and 73,826,558.10 is: 110,747,344.32
Step by Step Solution
- Step 1: Write the proportion equation
213,904,331.55 : 320,878,248.53 = 73,826,558.10 : x - Step 2: Convert to fraction form
213,904,331.55/320,878,248.53 = 73,826,558.10/x - Step 3: Cross multiply
213,904,331.55x = 320,878,248.53 × 73,826,558.10 - Step 4: Simplify right side
213,904,331.55x = 23,689,336,657,757,148 - Step 5: Solve for x
x = 23,689,336,657,757,148/213,904,331.55 - Step 6: Final answer
x = 110,747,344.32
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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.