Finding the Fourth Proportional to 74,135,243.96, 102,307,468.87 and 42,349,623.09
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Solution
The fourth proportional to 74,135,243.96, 102,307,468.87 and 42,349,623.09 is: 58,442,955.26
Step by Step Solution
- Step 1: Write the proportion equation
74,135,243.96 : 102,307,468.87 = 42,349,623.09 : x - Step 2: Convert to fraction form
74,135,243.96/102,307,468.87 = 42,349,623.09/x - Step 3: Cross multiply
74,135,243.96x = 102,307,468.87 × 42,349,623.09 - Step 4: Simplify right side
74,135,243.96x = 4,332,682,745,605,692.50 - Step 5: Solve for x
x = 4,332,682,745,605,692.50/74,135,243.96 - Step 6: Final answer
x = 58,442,955.26
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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.